The absolute value of a number is simply the distance that number lies away from 0 on the number line. Absolute value eliminates the "direction" traveled to get there. It's like saying that you walked 3 meters frontward versus 3 meters backward. You walked 3 meters in different directions from where you started! With a number line in front of ... 1. Set up the equation for the positive value. An equation involving absolute value will have two possible solutions. To set up the positive equation, simply remove the absolute value bars, and solve the equation as normal. [6] For example, the positive equation for is .The absolute value of a number represents its distance from zero on a number line, always resulting in a positive value. This concept is essential in mathematics, as it helps to simplify calculations and understand the magnitude of numbers, regardless of their positive or negative sign. Examples include finding the absolute values of 5, -10 ...The general form of an absolute value function is f (x)=a|x-h|+k. From this form, we can draw graphs. This article reviews how to draw the graphs of absolute value functions. General form of an absolute value equation: f ( x) = a | x − h | + k. The variable a tells us how far the graph stretches vertically, and whether the graph opens up or ...The absolute value of 4-7i to the square root of. verified. Verified answer. 4. The distance between a + 7i and -8 + 4i is Square root of 130 units The positive value of a is . star. 4.8/5. heart. 24. verified. Verified answer. Jonathan and his sister Jennifer have a combined age of 48.Absolute value inequalities are often used in the manufacturing process. An item must be made with near perfect specifications. Usually there is a certain tolerance of the difference from the specifications that is allowed. If the difference from the specifications exceeds the tolerance, the item is rejected.Click here 👆 to get an answer to your question ️ Select all numbers that have an absolute value of 4. Select all numbers that have an absolute value of 4. - brainly.com See what teachers have to say about Brainly's new learning tools!It include all complex numbers of absolute value 1, so it has the equation | z | = 1. A complex number z = x + yi will lie on the unit circle when x2 + y2 = 1. Some examples, besides 1, -1, i, and - 1 are ±√2/2 ± i √2/2, where the pluses and minuses can be taken in any order. They are the four points at the intersections of the ...About. Transcript. To solve absolute value equations, find x values that make the expression inside the absolute value positive or negative the constant. To graph …8 years ago. Well, the simple answer is that the absolute value of a number simply is the positive form of the number. |98| = 98. |-17362| = 17362. |-pi| = pi. That's the easiest way. Just get rid of the negative sign and boom, you've done the absolute value. But that's not really the point.So this, this is x equals negative two, satisfies our inequality. The absolute value of negative two is going to be less than the absolute value of negative seven. Then, finally, x equals six. So the absolute value is the absolute value of six. Once again, everywhere I see the x I just put the six there. X equals six. If we plot the real numbers on the real number line, the absolute value of any real number is simply its distance from 0 on the real number line. Similarly, we plot the complex numbers on the complex plane. In the complex plane, the origin represents the number 0. Thus, the absolute value of a complex number is the distance between that number ... Apr 2, 2024 · For example, the absolute value of 5 is 5, and the absolute value of −5 is also 5. The absolute value of a number may be thought of as its distance from zero along real number line. Furthermore, the absolute value of the difference of two real numbers is the distance between them. The absolute value has the following four fundamental properties: We would like to show you a description here but the site won’t allow us.Solve absolute value inequalities. A compound inequality includes two inequalities in one statement. A statement such as 4 < x≤ 6 4 < x ≤ 6 means 4 < x 4 < x and x ≤6 x ≤ 6. There are two ways to solve compound inequalities: separating them into two separate inequalities or leaving the compound inequality intact and performing ...Explanation: absolute value function like y = |x − 2|. can be written like this: y = √(x −2)2. apply differentiation : y' = 2(x −2) 2√(x − 2)2 → power rule. simplify, y' = x − 2 |x − 2| where x ≠ 2. so in general d dx u = u |u| ⋅ du dx. I will put this on double check just to be sure.Absolute Value: Symbol. Absolute value of a number is represented by writing the number between two vertical bars. Note that the vertical bars are not to be confused with parentheses or brackets.. The absolute value of x is represented by |x|, and we read it as “absolute value of x.”It is also read as “modulus of x.”Sometimes, the absolute value …2sqrt13 "the absolute value of a complex number is" •color(white)(x)|x+yi|=sqrt(x^2+y^2) "here "x=-6" and "y=4 rArr|-6+4i| =sqrt((-6)^2+4^2) =sqrt52=sqrt4xxsqrt13 ...The standard absolute value graph y=|x| has its vertex at (0, 0). If you want to change the point to be at (3,0), that means you are making x=3. Notice, these are on opposite sides of the "=". if you need to place them on the same side of the "=", then you would have x-3=0.Now, let us find the absolute value of a complex number z = 6 + 8i is ${\sqrt{6^{2}+8^{2}}}$ = ${\sqrt{100}}$ = 10. In Unit Circle. Complex numbers can have an absolute value of 1. It is the same for -1, just as for the imaginary numbers i and -i. This is because all of them are one unit away from 0, either on the real number line or the ...1 Answer. The absolute value of 4 +7i is √65. The absolute value of a complex number in the form a +bi is found using this process: √a2 + b2. So, given z = |4 +7i|, The absolute value of 4 + 7i is sqrt65. The absolute value of a complex number in the form a + bi is found using this process: sqrt (a^2 + b^2). So, given z = |4 + 7i|, |z ...Simplify absolute value expressions using algebraic rules step-by-step. absolute-value-calculator. en. Related Symbolab blog posts. Middle School Math Solutions - Inequalities Calculator.1. report flag outlined. Answer: 4/25 is the absolute value of -4/25. Step-by-step explanation: The absolute value of a number is the distance a number is from 0. For example 3 would be the same distance from 0 as -3. Hope this helped you understand more about absolute value! Thank you so much that is exactly what I needed. report flag outlined.Compare the f (x) f ( x) values found for each value of x x in order to determine the absolute maximum and minimum over the given interval. The maximum will occur at the highest f (x) f ( x) value and the minimum will occur at the lowest f (x) f ( x) value. Absolute Maximum: (4,15) ( 4, 15)The parent function for absolute value functions is f(x) = |x|. It can be thought of as representing the distance between the number x and zero on the number line. The shape of absolute value functions is a "v". This means that each absolute value function can be thought of as two separate lines. This means that piecewise functions are a ... Transcript. Absolute value is a fundamental math concept that measures the distance of a number from zero, regardless of its sign. It's always a positive value, as it represents the magnitude of a number without considering its direction. This concept is useful in real-world applications, such as calculating distances and comparing heights. So it's negative 2 times the absolute value of x plus 10 is equal to, well the whole point of this, of the 6 times the absolute value of x plus 10 minus 6 times the absolute value of x plus 10 is to make those cancel out, and then you have 10 minus 4, which is equal to 6. Now, we want to solve for the absolute value of x plus 10.Simplify absolute value expressions using algebraic rules step-by-step. absolute-value-calculator. en. Related Symbolab blog posts. Middle School Math Solutions – …The absolute value of a number is its distance from 0 on a number line. Learn to find absolute value and opposite numbers in this quick, free math lesson!The absolute value of any integer, whether positive or negative, will be the real numbers, regardless of which sign it has." Here, The given complex number is -4 - sqrt 2i. The absolute value of a complex number is. Here a = -4, b = sqrt (2) So, absolute value of the complex number is. Hence, the absolute value is sqrt (18).It says absolute of 4 and -3, which the absolute of 4 is -4 and the absolute of -3 is 3. So the distance between the two absolutes is 7 so your answer is 7An eosinophil count uses a standard blood draw. As with any blood test, there are minimal risks of experiencing minor bruising at the needle site. In rare cases, the vein may become swollen after ...Absolute value as distance between numbers. Report a problem. Loading... Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.Apr 16, 2024 · 4·(-2) + 1 = |2·(-2) - 3| => -8 + 1 = |-4 - 3| => -7 = +7, which is a mathematical absurdity. This same process of dividing the absolute value equation or absolute value inequality, then checking what solutions make sense, is very useful and standard. In algebra, an absolute value (also called a valuation, magnitude, or norm, [1] although "norm" usually refers to a specific kind of absolute value on a field) is a function which measures the "size" of elements in a field or integral domain. More precisely, if D is an integral domain, then an absolute value is any mapping |x| from D to the ...The absolute value of a number is its distance from zero on the number line. We started with the inequality | x | ≤ 5. We saw that the numbers whose distance is less than or equal to five from zero on the number line were − 5 and 5 and all the numbers between − 5 and 5 (Figure 2.8.4 ). Figure 2.8.4.Quiz: Absolute Value. Previous Absolute Value. Next Solving Equations Containing Absolute Value. Access quality crowd-sourced study materials tagged to courses at universities all over the world and get homework help from our tutors when you need it.Simplify absolute value expressions using algebraic rules step-by-step. absolute-value-calculator \left|-5\right| en. Related Symbolab blog posts. High School Math Solutions - Systems of Equations Calculator, Elimination. A system of equations is a collection of two or more equations with the same set of variables. In this blog post,...The only way for the value of the absolute value to be 3 is for the quantity inside to be either -3 or 3. In other words, we get rid of the absolute value bars by using the formula from the notes. Show Step 2. At this point all we need to do is solve each of the linear equations we got in the previous step. Doing that gives,To get from −8 − 8 to the answer you really want, just take the absolute value! Thus, absolute value provides a convenient way to talk about the distance between any two real numbers: DISTANCE BETWEEN TWO REAL NUMBERS absolute value of the difference. Let x x and y y be real numbers. Then: |x−y| =the distance between x and y | x − y ...Absolute Value Caculator in Batch. Numbers: Absolute Values:The absolute maximum value of the function occurs at the higher peak, at \(x=2\). However, \(x=0\) is also a point of interest. Although \(f(0)\) is not the largest value of \(f\), the value \(f(0)\) is larger than \(f(x)\) for all \(x\) near 0. We say \(f\) has a local maximum at \(x=0\). Similarly, the function \(f\) does not have an absolute ...It include all complex numbers of absolute value 1, so it has the equation | z | = 1. A complex number z = x + yi will lie on the unit circle when x2 + y2 = 1. Some examples, besides 1, -1, i, and - 1 are ±√2/2 ± i √2/2, where the pluses and minuses can be taken in any order. They are the four points at the intersections of the ...The local minimum value of \(f\) is the absolute minimum value of \(f\), namely \(-1\); the local maximum and absolute maximum values for \(f\) also coincide - they both are \(1\). Every point on the graph of \(f\) is simultaneously a relative maximum and a relative minimum.If the number is not negative then the absolute value of the number is itself. Thus the absolute value of 6 is 6, the absolute value of 1/3 is 1/3 and the absolute value of 0 is 0. If the number is negative then to find the absolute value you just drop the negative sign. Thus the absolute value of -2 is 2 and the absolute value of -1/7 is 1/7 ...We could say that the absolute value of a number is its purely arithmetical value. Here is the algebraic definition of | x |: If x ≥ 0, then | x | = x; if x < 0, then | x | = − x. That is, if x is non-negative: |3|, then the absolute value is the number itself. If x is negative: |−3|, then the absolute value is its negative; that makes ...Break up the absolute value and rewrite the terms for the positive solution and solve for . For the negative solution, split up the absolute value and add a negative in front of the quantity which was contained by the absolute value. Divide by negative one on both sides. Subtract three on both sides. Simplify both sides.Mathematically, we take the absolute value of the result. We will ignore this detail from now on, while remembering to interpret elasticities as positive numbers. This means that, along the demand curve between point (B) and (A), if the price changes by 1%, the quantity demanded will change by 0.45%. A change in the price will result in a ...The absolute value of an integer is the numerical value without regard to whether the sign is negative or positive. On a number line it is the distance between the number and zero. The absolute value of -15 is 15. The absolute value of +15 is 15. The symbol for absolute value is to enclose the number between vertical bars such as |-20| = 20 and ...Q2. Find the absolute value of a number -3/4. Q3. Find the absolute value of complex number 4 + 9i. Q4. Find the absolute value of complex number 3 - 2i. FAQs on Absolute Value What is Absolute Value in Algebra? The absolute value of a number is defined as a numeric value regardless of the sign of the number.Step 1. We have. % change in price = 6% increase. View the full answer Answer. Unlock. Previous question Next question. Transcribed image text: A6% increase in price results in a 4% decrease in quantity demanded. The absolute value of price elasticity of demand is (Enter your response rounded to one decimal place.)The absolute value of 4 is also 4, because 4 is 4 units to the right of 0. Opposites always have the same absolute value because they both have the same distance from 0. The distance from 0 to itself is 0, so the absolute value of 0 is 0. Zero is the only number whose distance to 0 is 0. For all other absolute values, there are always two ...Solve absolute value inequalities. A compound inequality includes two inequalities in one statement. A statement such as 4 < x≤ 6 4 < x ≤ 6 means 4 < x 4 < x and x ≤6 x ≤ 6. There are two ways to solve compound inequalities: separating them into two separate inequalities or leaving the compound inequality intact and performing ...This page titled 1.2: Solving Absolute Value Equations is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by OpenStax via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.Shift absolute value graphs Get 3 of 4 questions to level up! Scale & reflect absolute value graphs Get 3 of 4 questions to level up! Graph absolute value functions Get 3 of 4 questions to level up! Quiz 1. Level up on the above skills and collect up to 240 Mastery points Start quiz. Piecewise functions.Question 448581: what is the absolute value of 4+7i. Answer by jim_thompson5910 (35256) ( Show Source ): You can put this solution on YOUR website! Start with the absolute value of a complex number formula. This is also known as the magnitude of a complex number formula. Plug in and . Square to get.When two functions mirror each other like that, they are said to be conjugate. For example, when x=2, abs (x) will give 2, so: (x,y)= (2,2) the conjugate of two is (the second term is …Inside the absolute-value bars of this function, I've got a quadratic. Without the absolute-value bars, the graph of the quadratic inside the bars is a generic parabola. I can confirm (by factoring) that the x-intercepts are at x = −1 and x = 4. I can use a formula to confirm that the vertex is at (1.5, −6.25). The y-intercept is at y = −4.The absolute value of 9 is 9. (9 is 9 places from 0.) The absolute value of -4 is 4. (-4 is 4 places from 0.) The absolute value of 0 is 0. (0 is 0 places from 0.) We work with the understanding that 9 and 4 don't tell which side of zero 9 and -4 are on. The absolute value simply tells how far these numbers are from 0. We would like to show you a description here but the site won’t allow us. Example 4.4.5. Solve for y y: |y + 2| ≤ 5 | y + 2 | ≤ 5. Solution. If we are to use distance to find a solution, our inequality must be converted to the absolute value of a difference. We will use the following property of arithmetic to convert to a difference: A + B = A − (−B) A + B = A − ( − B) Therefore:Algebra Properties of Real Numbers Additive Inverses and Absolute Values. 2 Answers Wataru Nov 11, 2014 Remember that the absolute value sign is a negative sign eraser, so we have: #{(|-10|=10),(|10|=10):}# I hope that this was helpful. Answer link. Firelight Nov 11 ...The general form of an absolute value function is f (x)=a|x-h|+k. From this form, we can draw graphs. This article reviews how to draw the graphs of absolute value functions. General form of an absolute value equation: f ( x) = a | x − h | + k. The variable a tells us how far the graph stretches vertically, and whether the graph opens up or ...The absolute value of the number is defined as its distance from the origin. For example, to find the absolute value of 7, locate 7 on the real line and then find its distance from the …Assuming "absolute value" is a math function | Use as referring to a mathematical definition instead. Input. Plots. Alternate form assuming x>0. Alternate form assuming x is real. Root. Step-by-step solution; Properties as a real function. Domain. Range. Parity. Derivative. Step-by-step solution;Now that we can graph an absolute value function, we will learn how to solve an absolute value equation. To solve an equation such as 8 = | 2 x − 6 |, 8 = | 2 x − 6 |, we notice that the absolute value will be equal to 8 if the quantity inside the absolute value is 8 or -8. This leads to two different equations we can solve independently.Question 764709: Find the absolute value of the complex number 4 + 4i Find the absolute value of the complex number -3 - 6i Find the absolute value of the complex number 5 - 4i. Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website! Rule: |a+bi| = sqrt[a^2+b^2]Comparing absolute values. Comparing absolute values helps us understand the distance between numbers and zero on the number line. The absolute value is always positive or zero, and it represents the magnitude of a number. By comparing absolute values, we can determine which number is further from zero, regardless of its positive or negative ...It include all complex numbers of absolute value 1, so it has the equation | z | = 1. A complex number z = x + yi will lie on the unit circle when x2 + y2 = 1. Some examples, besides 1, -1, i, and - 1 are ±√2/2 ± i √2/2, where the pluses and minuses can be taken in any order. They are the four points at the intersections of the ... The absolute value of a number corresponds to its magnitude, without considering its sign, if it has it. Geometrically, it corresponds to the distance of a point x x to the origin 0 0, on the real line. Mathematically the absolute value of a number x x is represented as |x| ∣x∣ . Due to the geometric nature of its interpretation, the ... -4 - the absolute value is 4, as -4 is four numbers from 0. -18.2 - the absolute value is 18.2, as 18.2 is 18.2 numbers from 0. 17 1/3 - the absolute value is 17 1/3, as 17 1/3 is 17 1/3 numbers from 0. Sources and more resources. Wikipedia - Absolute Value. Planet Math - Absolute Value. Math is Fun - Absolute Value. Purple Math - Absolute Value.Zero is the only value that has no sign attached to it and, thus, is considered its own opposite. Example 1. Find the opposite of the integer: -4. Solution. Since the 4 is negative, the opposite ...The absolute value of any number is either zero [latex](0)[/latex] or positive. It makes sense that it must always be greater than any negative number. The answer to this case is always all real numbers. Examples of How to Solve Absolute Value Inequalities. Example 1: Solve the absolute value inequality.Mean absolute deviation describes the average distance between the values in a data set and the mean of the set. For example, a data set with a mean average deviation of 3.2 has values that are on average 3.2 units away from the mean. A group of kids in town A has a bake sale every week for 5 weeks, making $40, $40, $50, $55, and $65. Their mean sales are ...The absolute maximum and minimum value of f (x)= 3x4 −8x3 +12x2 −48x+25,x ∈ [0,3] are respectively. View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:the absolute value of 4xx4 if 0 x 4 is.Rational equations are equations in which variables can be found in the denominators of rational expressions. 1 x + 1 = 2 x. . is a rational equation. Both radical and rational equations can have extraneous solutions, algebraic solutions that emerge as we solve the equations that do not satisfy the original equations.Absolute values often show up in problems involving square roots. That's because you can't take the square root of a negative number without introducing imaginary numbers (those involving ). Example 1: Simplify This problem looks deceptively simple. Many students would say the answer is and move on. However, that is only true for positive values […]The absolute value of 4-7i to the square root of. verified. Verified answer. 4. The distance between a + 7i and -8 + 4i is Square root of 130 units The positive value of a is . star. 4.8/5. heart. 24. verified. Verified answer. Jonathan and his sister Jennifer have a combined age of 48. If Jonathan is twice as old as his sister, how old is JenniferDefinition: Absolute Value. Absolute value for linear equations in one variable is given by. If |x| = a, then x = a or x = −a If | x | = a, then x = a or x = − a. where a a is a real number. When we have an equation with absolute value, it is important to first isolate the absolute value, then remove the absolute value by applying the ...Here's how to calculate the mean absolute deviation. Step 1: Calculate the mean. Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations. Step 3: Add those deviations together. Step 4: Divide the sum by the number of data points. Following these steps in the example below is ...Define absolute value. absolute value synonyms, absolute value pronunciation, absolute value translation, English dictionary definition of absolute value. n. 1. The numerical value of a real number without regard to its sign. For example, the absolute value of -4 is 4. Also called numerical value .
The General Steps to solve an absolute value equation are: Rewrite the absolute value equation as two separate equations, one positive and the other negative. Solve each equation separately. After solving, substitute your answers back into original equation to verify that you solutions are valid. Write out the final solution or graph it as needed.. Sing 2 full movie
The absolute value function is commonly used to measure distances between points. Applied problems, such as ranges of possible values, can also be solved using the absolute value function. The graph of the absolute value function resembles a letter V. It has a corner point at which the graph changes direction.1. To expand on @davin's comment: Use the definition of the absolute value! The absolute value equals "the inside" when "the inside" is non-negative, and equals " (-) the inside" when "the inside is negative. So you need to find where "the inside" is zero (i.e. find the roots of −2x3 + 24x = 0 − 2 x 3 + 24 x = 0 and possibly split the ...The absolute value of − 4 is also 4 : A number line from negative 5 to 5 with evenly spaced tick marks in increments of 1. Above the number line is a bracket labeled 4 that starts at negative 4 and ends at 0.A low absolute neutrophil count is referred to as neutropenia . This occurs when the ANC is less than 2,500 cells/mcL. At levels below 1,000, you are at an increased risk of infection. A high absolute neutrophil count is called neutrophilia . This occurs when the ANC is over 6,000 cells/mcL.Absolute Value Worksheets. Our printable absolute value worksheets meticulously designed for 6th grade and 7th grade students include exercises like finding the absolute value of positive and negative integers, performing simple addition, subtraction, multiplication and division involving the absolute value of real numbers and more.Output:-. Enter a number: -52.8. Absolute value = 52.800000. Enter a number: 5. Absolute value = 5.000000. In this C program, we use the if block statement. If the number is negative then convert the number into a positive number otherwise it will remain as it is. To convert the number from negative to positive the minus operator (-) can be used.Meaning of absolute value Get 3 of 4 questions to level up! Finding absolute values Get 5 of 7 questions to level up! Lesson 7: Comparing numbers and distance from zero. Learn. Comparing absolute values (Opens a modal) Placing absolute values on the number line (Opens a modal)The absolute value of -4 is 4, because -4 is 4 units to the left of 0. The absolute value of 4 is also 4, because 4 is 4 units to the right of 0. Opposites always have the same absolute value because they both have the same distance from 0.Explanation: Absolute (denoted by the vertical bars) means that everything between them is converted to non-negative. So | −4| = 4 and so is |4| = 4. Answer link. |4| is allready an absolute value, equal to 4 Absolute (denoted by the vertical bars) means that everything between them is converted to non-negative.The absolute value of a number is its distance from zero on a number line, regardless of the direction. So, the absolute value of -1/4, represented as |-1/4|, is simply 1/4. This is because if we were to place -1/4 on a number line, regardless of its negative status, it would still be 1/4 units away from zero, hence its absolute value is 1/4.Input: N = 12. Output: 12. Naive Approach: To solve the problem follow the below idea: The absolute value of any number is always positive. For any positive number, the absolute value is the number itself and for any negative number, the absolute value is (-1) multiplied by the negative number. Learn More, Positive and Negative Numbers.Absolute Value Caculator in Batch. Numbers: Absolute Values:The absolute value of a number is its distance from zero on a number line . For instance, 4 and − 4 have the same absolute value ( 4 ). So, the absolute value of a positive number is just the number itself, and the absolute value of a negative number is its opposite. The absolute value of 0 is 0 . Easy!its distance from zero on the number line. * For the notation, we use two big vertical lines. Check it out: Find the absolute value of 4: Find the absolute value of -5: continue. 1. of 2. This prealgebra lesson defines and explains how to find the absolute value of a number.The first is simply restating the results of the definition of absolute value. In other words, absolute value makes sure the result is positive or zero (if \(p\) = 0). The second is also a result of the definition. Since taking absolute value results in a positive quantity or zero it won't matter if there is a minus sign in there or not.The reason this happens is the absolute value always creates a positive number. And, a positive number will never = a negative number. So, let's extend that concept to inequalities. 1) An absolute value < a negative: In this situation, we have a positive value < a negative value. That would always be false.So in order to compute the absolute value for any number we do have a specified method in Java referred to as abs () present inside Math class present inside java.lang package. The java.lang.Math.abs () returns the absolute value of a given argument. If the argument is not negative, the argument is returned.A normal absolute eosinophil count ranges from 0 to 500 cells per microliter (<0.5 x 10 9 /L). This typically amounts to less than 5% of all white blood cells. Different laboratories may have different normal reference ranges. Your healthcare provider can explain your results and provide clarity if you have any questions.Finding absolute values. Google Classroom. Select all numbers that have an absolute value of 5 . Choose all answers that apply: − 5. A.Test prep. Improve your math knowledge with free questions in "Absolute value of rational numbers" and thousands of other math skills.The absolute value of 4 - 7i is sqrt(65). Explanation: To find the absolute value of a complex number, we need to calculate its magnitude, which is given by the distance from the origin to the point representing the complex number on the complex plane. For the complex number 4 - 7i, the absolute value is:.