Absolute value of -4

According to theory, we never will.) Absolute zero is at -273.15 Celsius, or -459.67 Fahrenheit. The Kelvin temperature scale uses the same size degree as Celsius, but has its zero set to absolute zero. To convert from Celsius to Kelvin, add 273.15 to the Celsius reading. ... 4.2: liquid helium boils-459.67-273.15: 0: absolute zero:

The absolute value of the complex number -4- sqrt 2i is sqrt 18. Explanation: The absolute value of a complex number is the distance between the number and the origin on the complex plane. To find the absolute value of the complex number -4- sqrt 2i, we need to find the magnitude of the number.Interpreting absolute value. In this weight change scenario, three individuals track their monthly progress. Jenna experiences a 3-pound weight loss, while Sarah gains 2.5 pounds and Bill gains 4 pounds. By plotting these changes on a number line, we can determine that Jenna lost the most weight, Bill had the largest change, and Sarah had the ...And just as a reminder, absolute value literally means-- whether we're talking about a complex number or a real number, it literally just means distance away from 0. So the absolute value of 3 minus 4i is going to be the distance between 0, between the origin on the complex plane, and that point, and the point 3 minus 4i.Examples, videos, and solutions to help Grade 6 students understand the absolute value of a number as its distance from zero on the number line. Students use absolute value to find the magnitude of a positive or negative quantity in a real-world situation. New York State Common Core Math Grade 6, Module 3, Lesson 11. Opening Exercises.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. The absolute value of the slope of the demand curve D1 is, and the absolute value of the slope of demand curve D2 is 16 D1 12t- 10 4 D2 2t o 2 4 6 8 10 12 14 16 18 20 Quantity 。12:2 2112 。5/4; 4/5 0 4/55/4 . Show transcribed image text. There's just one step to solve this.Theorem: Extreme valUE theorem. Assume z = f (x,y) z = f ( x, y) is a differentiable function of two variables defined on a closed, bounded set D D. Then f f will attain the absolute maximum value and the absolute minimum value, which are, respectively, the largest and smallest values found among the following: The values of f f at the critical ...

Absolute value. In this section you'll learn how to the find the absolute value of integers. In this pattern you can see that 4 - 5 is equal to a negative number. A negative number is a number that is less than zero (in this case -1). A negative number is always less than zero, 0. We can study this in a diagram by using two examples: 0 - 4 = -4 ... 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. Unit 10: Absolute value & piecewise functions. Piecewise functions piece together different functions. Absolute value graphs make a V shape, but why do they do that? Let's explore how to make some new and interesting types of graphs. 4.1: Piecewise-Defined Functions In preparation for the definition of the absolute value function, it is extremely important to have a good grasp of the concept of a piecewise-defined function. 4.2: Absolute Value The absolute value of a number is a measure of its magnitude, sans (without) its sign. 4.3: Absolute Value EquationsEnter Double Number = -34556.8765 Enter Float Number = -2345.239f Actual Double Number = -34556.876500 Absolute Double Number = 34556.876500 Actual Float Number = -2345.239 Absolute Float Number = 2345.239. This c example uses the labs function to find the absolute value of a long number.Absolute Operator @ Besides the ABS() function, you can use the absolute operator @: @ expression. In this syntax, the @ operator returns the absolute value of the expression. Examples. The following example shows how to use the ABS() function to calculate the absolute value of a number: SELECT ABS (-10.25) result; Code language: CSS (css) The ...

The absolute value of 4 is 4. The formal definition of the absolute value of a number x, denoted | x |, is the distance... See full answer below. Less positive (move closer to zero). In the $120 to $160 price range in Figure 5.1, the absolute value of the price elasticity of demand is closest to: 2.33. If the price is reduced from $100 to $80 in Figure 5.1, ceteris paribus: Total revenue will decrease. Ashely has a budgeted $40 per month for candy bars.Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.4.9: Absolute Value Functions. There are a few ways to describe what is meant by the absolute value | x | of a real number x. You may have been taught that | x | is the distance from the real number x to 0 on the number line. So, for example, | 5 | = 5 and | − 5 | = 5, since each is 5 units from 0 on the number line.Practice set 1: Finding absolute value. To find the absolute value of a complex number, we take the square root of the sum of the squares of the parts (this is a direct result of the Pythagorean theorem): | a + b i | = a 2 + b 2. For example, the absolute value of 3 + 4 i is 3 2 + 4 2 = 25 = 5 . Problem 1.1.We can see two scale factors applied to n(x): 3 on the output value and 1/4 for the input value. Applying what we know on vertical and horizontal stretches, we have n(x) = 3·m(1/4 · x). Meaning, n(x) is the result of m(x) being vertically stretched by a scale factor of 3 and horizontally stretched by a scale factor of 1/4.

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An absolute number takes the positive value of a number, without regards to its sign. Mean is an average of a set of numbers. So, what is the mean absolute deviation? It's the average of every value's distance from a certain central point. This point can be a mean, median, mode, or any other statistically significant number.Simplify absolute value expressions using algebraic rules step-by-step. absolute-value-calculator. en. Related Symbolab blog posts. Middle School Math Solutions - Inequalities Calculator.绝对值. 絕對值可視作該數與零之間的距離. 在 数学 中， 实数 的 绝对值 或 模 ，记号为 ，是指去掉 的 符号 所得的非负 值 。. 若 是 正数 ，则 ； 若 是 负数 （则 是正数），则 ； 零 的绝对值为零（ ）。. 例如， 和 的绝对值都是 。. 绝对值可看作该数和零 ...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 ...

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:f′(x) ={1 −1 x > 0 x < 0. is true. But to check whether f is differentiable at 0, we need to decide if. limh→0 f(0 + h) − f(0) h = limh→0 |h| h. exists. In fact, this limit does not exist. The moral of the story is that differentiability requires checking not just a point, but a neighborhood around that point. This is why when it can ...So 12 worked 0 shouldn't work. Lets try 0. Zero minus 12 so it's the absolute value of 0. I wanna do this in a different color. It is the absolute value of 0 minus 12 plus 4. This should not be less than 14. This should not work. So we get the absolute value of negative 12. Plus 4 should not be less than 14. Then we should end up with a ...In other words it is the magnitude or size of a number, no negatives allowed. The symbol "|" is placed either side to mean "Absolute Value", so we write: |−6| = 6. Try it yourself: Absolute Value. Illustrated definition of Absolute Value: How far a number is from zero. Examples: 6 is 6 away from zero, so the absolute value of 6 is 6 minus6...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 ...Yes, because the spaces (Draw a number line if your confused about "spaces"!) |-6| or -6 from 0 is exactly 6. So to make the equation simpler, you rewrite it. So 6 x 6 = 36. (: Hope this helps! Absolute Value. <----- (-6)----- (-5)----- (-4)----- (-3)----- (-2)----- (-1)----- (0)----->.In mathematics, the absolute value or modulus |x| of a real number x is the non-negative value of x without regard to its sign. Namely, |x| = x for a positive x, |−x| = x for a negative x (in which case −x is positive), and |0| = 0. For example, the absolute value of 3 is 3, and the absolute value of −3 is also 3.Simplify expressions that contain absolute value. Evaluate expressions that contain absolute value. We saw that numbers such as 5 5 and −5 − 5 are opposites because they are the same distance from 0 0 on the number line. They are both five units from 0 0. The distance between 0 0 and any number on the number line is called the absolute ...Indefinite Integral of Absolute Value of x? Is there a closed form solution? Ask Question Asked 8 years, 6 months ago. Modified 2 years, 9 months ago. Viewed 50k times 12 $\begingroup$ Been searching the net for awhile and everything just comes back about doing the definite integral. ... rev 2024.4.18.7903 ...Absolute Operator @ Besides the ABS() function, you can use the absolute operator @: @ expression. In this syntax, the @ operator returns the absolute value of the expression. Examples. The following example shows how to use the ABS() function to calculate the absolute value of a number: SELECT ABS (-10.25) result; Code language: CSS (css) The ...

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.

绝对值. 絕對值可視作該數與零之間的距離. 在 数学 中， 实数 的 绝对值 或 模 ，记号为 ，是指去掉 的 符号 所得的非负 值 。. 若 是 正数 ，则 ； 若 是 负数 （则 是正数），则 ； 零 的绝对值为零（ ）。. 例如， 和 的绝对值都是 。. 绝对值可看作该数和零 ...In mathematics, the absolute value or modulus |x| of a real number x is the non-negative value of x without regard to its sign. Namely, |x| = x for a positive x, |−x| = x for a negative x (in which case −x is positive), and |0| = 0. For example, the absolute value of 3 is 3, and the absolute value of −3 is also 3.Plug in '5' for 'a' and '6' for 'b'. The absolute value of 5+6i is equal to the square root of (5 2 +6 2 ) We can simplify the right side, the part under the square root sign. '5' squared is 25. '6' squared is 36. 25+36 is 61. Since 61 is prime, it doesn't have any perfect square factors we can simplify with the square root.Test prep. Improve your math knowledge with free questions in "Absolute value of rational numbers" and thousands of other math skills.Absolute value - The non-negative value of a number without regard to its sign. 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. Therefore the absolute value of -1/4 is just 1/4.In other words it is the magnitude or size of a number, no negatives allowed. The symbol "|" is placed either side to mean "Absolute Value", so we write: |−6| = 6. Try it yourself: Absolute Value. Illustrated definition of Absolute Value: How far a number is from zero. Examples: 6 is 6 away from zero, so the absolute value of 6 is 6 minus6...This paper designs a 4-bit absolute value detector using CMOS logic and Pass-Transistor Logic (PTL). It can compare the input binary number with the set threshold, which can detect the peak signal to reduce the interference of noise and improve the detection accuracy of the signal. This paper innovatively uses the full adder to design the ...When solving absolute value equations, there are two cases to consider: Case 1: The expression inside the absolute value bars is positive. Case 2: The expression inside the absolute value bars is negative. Example 1. Take the expression | 4 x + 2 | = 18 as an example. For this to be true, either.The algebraic definition of an absolute value is also pretty straightforward to implement in Python: Python. from math import sqrt def absolute_value(x): return sqrt(pow(x, 2)) First, you import the square root function from the math module and then call it on the given number raised to the power of two.The absolute value of the number plotted on the number line is; 0.5. How to find Absolute Value? The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign.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

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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.👉 Learn how to graph absolute value equations when we have a value of b other than 1. B will affect our horizontal shift as well as horizontal stretch compr...Question: Make a circuit which gives the absolute value of a 4-bit binary number. Use four full adders, four multiplexers, and four inverters. Assume negative numbers are represented in 2's complement. Recall that one way to find the 2's complement of a binary number is to invert all of the bits and then add 1. There are 2 steps to solve this one.The absolute value of -5 is 5. The distance from -5 to 0 is 5 units. The absolute value of 2 + (-7) is 5. When representing the sum on a number line, the resulting point is 5 units from zero. The absolute value of 0 is 0. (This is why we don't say that the absolute value of a number is positive. Zero is neither negative nor positive.)For example, the absolute value of 4 is 4 : − 5 − 4 − 3 − 2 − 1 0 1 2 3 4 5 4. This seems kind of obvious. Of course the distance from 0 to 4 is 4 . Where absolute value gets …Examples, videos, and solutions to help Grade 6 students understand the absolute value of a number as its distance from zero on the number line. Students use absolute value to find the magnitude of a positive or negative quantity in a real-world situation. New York State Common Core Math Grade 6, Module 3, Lesson 11. Opening Exercises.When a function has a vertex, the letters h and k are used to represent the coordinates of the vertex. Because an absolute value function has a vertex, the general form is y = a0x-h0 + k.The vertical stretch or compression factor is 0a 0, the vertex is located at (h, k), and the axis of symmetry is the line x = h.Key Concept General Form of the Absolute Value FunctionThis 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 down. The variables h and k tell us how far the graph shifts horizontally and vertically.The absolute value of a number tells us its distance from 0. 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 … ….

The absolute value is defined as the distance from a number to 0, and so it is always positive. So, the absolute value of −6 will be the distance from −6 to 0 on the number line, and it is 6. Remember that, | ± x| = x,x ∈ R. Answer link. 6 The absolute value is defined as the distance from a number to 0, and so it is always positive.Definitions: The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign. 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 ...Enter Double Number = -34556.8765 Enter Float Number = -2345.239f Actual Double Number = -34556.876500 Absolute Double Number = 34556.876500 Actual Float Number = -2345.239 Absolute Float Number = 2345.239. This c example uses the labs function to find the absolute value of a long number.Follow the steps mentioned below to find the absolute value of a number using the online absolute value calculator. Step 1: Go to Cuemath's online absolute value calculator. Step 2: Enter any number in the given input box. Step 3: Click on " Calculate " to find the absolute value of the number. Step 4: Click on " Reset " to clear the field and ...The absolute value of a real number is the distance of the number from 0 0 on a number line. The absolute value of x x is written as \left|x\right|. ∣x∣. For example, \left|5\right| = \left|-5\right| = 5. ∣5∣ = ∣−5∣ = 5. This is a special case of the magnitude of a complex number.The absolute value function f ( x ) is defined by. f ( x ) = | x | = {-x, x<0 0, x=0 x, x>0. is called an absolute value function. It is also called a modulus function. We observe that the domain of the absolute function is the set R of all real numbers and the range is the set of all non-negative real numbers.Find your Math Personality! What is the absolute value of the complex number -4-√2i? √14, 3√2, 14, 18. Solution: Given complex number is -4 - √2i. The absolute value of a complex number is the distance between the origin and the given point on a complex plane and it can be calculated as follows: |a + ib| = √ (a 2 + b 2) Here, a = -4 ...As another example, if we are asked to compute abs (-3), we take note of the fact that -3 is 3 units away from 0. It happens to be on the left of 0 on a number line, but it's still 3 units away. We say that abs (-3) = 3. "The absolute value of -3 is 3." If our original number is negative, we just answer with the positive version of the number. Absolute value of -4, Simply enter two real numbers in the input sections and hit the calculate button to avail the Absolute Difference of two numbers in a matter of seconds. 4. Why is the Absolute Value of a number always positive? Absolute Value is always positive as it is the distance of a number from zero in the number line., Plug in '5' for 'a' and '6' for 'b'. The absolute value of 5+6i is equal to the square root of (5 2 +6 2 ) We can simplify the right side, the part under the square root sign. '5' squared is 25. '6' squared is 36. 25+36 is 61. Since 61 is prime, it doesn't have any perfect square factors we can simplify with the square root., We can see two scale factors applied to n(x): 3 on the output value and 1/4 for the input value. Applying what we know on vertical and horizontal stretches, we have n(x) = 3·m(1/4 · x). Meaning, n(x) is the result of m(x) being vertically stretched by a scale factor of 3 and horizontally stretched by a scale factor of 1/4., The function returns the absolute value (modulus) of the specified numeric value. double MathAbs ( double value // numeric value ); Parameters. value [in] Numeric value. Return Value. Value of double type more than or equal to zero. Note. Instead the MathAbs() function you can use fabs (). Math Functions MathArccos . Join us — download ..., Subtract the smaller number from the larger and you get 15. 5 - 10. 5 = 5.0. The larger absolute value in the equation is 15.5 and is a negative number so the final result is a negative number. Therefore, the result of 10.5 + (-15.5) = -5.0. Work out a few practice problems, and you're bound to absolutely value the fact you asked a great ..., Study with Quizlet and memorize flashcards containing terms like Which of the following is the graph of f(x)= |x| translated 2 units right, 2 units up, and dilated by a factor of 1/3?, What is the vertex of f(x) = |x + 8| - 3?, Which function is a translation of the parent absolute value function? and more., 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. , Syntax. Math.Abs(number); The Math.Abs() method takes only one parameter, number, a decimal, double or integer type number. The method returns the absolute value of the number with the same type as the number, except if the value of number equals: NaN (not a number), then it returns NaN. NegativeInfinity, then it returns PositiveInfinity., Enter Double Number = -34556.8765 Enter Float Number = -2345.239f Actual Double Number = -34556.876500 Absolute Double Number = 34556.876500 Actual Float Number = -2345.239 Absolute Float Number = 2345.239. This c example uses the labs function to find the absolute value of a long number., 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., 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:, According to theory, we never will.) Absolute zero is at -273.15 Celsius, or -459.67 Fahrenheit. The Kelvin temperature scale uses the same size degree as Celsius, but has its zero set to absolute zero. To convert from Celsius to Kelvin, add 273.15 to the Celsius reading. ... 4.2: liquid helium boils-459.67-273.15: 0: absolute zero:, Answer: 4.5. Step-by-step explanation: absolute value: the distance away from zero, it will always be positive because distance can't be negative. thus, the absolute value of 4.5 = the distance of 4.5 to zero, which is 4.5. |4.5| = 4.5. arrow right., The absolute value of complex number is also a measure of its distance from zero. However, instead of measuring this distance on the number line, a complex number's absolute value is measured on the complex number plane., For example, the absolute value of 4 is 4 : − 5 − 4 − 3 − 2 − 1 0 1 2 3 4 5 4. This seems kind of obvious. Of course the distance from 0 to 4 is 4 . Where absolute value gets …, Interpreting absolute value. In this weight change scenario, three individuals track their monthly progress. Jenna experiences a 3-pound weight loss, while Sarah gains 2.5 pounds and Bill gains 4 pounds. By plotting these changes on a number line, we can determine that Jenna lost the most weight, Bill had the largest change, and Sarah had the ..., 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., 1-4) Computes the absolute value of the floating-point value num. The library provides overloads of std::abs and std::fabs for all cv-unqualified floating-point types as the type of the parameter num. (since C++23) A) Additional overloads are provided for all integer types, which are treated as double., What is absolute value? Absolute value is the distance a number is from 0.. To find the absolute value, place the number on a number line and measure the distance from 0.. For example, What is the absolute value of -2?-2 is 2 away from 0, so the absolute value is 2.. To write this mathematically, use the absolute value symbol, which is two vertical bars around a number or expression: |-2|=2., f′(x) ={1 −1 x > 0 x < 0. is true. But to check whether f is differentiable at 0, we need to decide if. limh→0 f(0 + h) − f(0) h = limh→0 |h| h. exists. In fact, this limit does not exist. The moral of the story is that differentiability requires checking not just a point, but a neighborhood around that point. This is why when it can ..., This will give you two answers. The first case: Everything was already positive: |x-3/2|> 5 becomes x-3/2>5. So you add 3/2 to both sides and one of the two answers is x>6 1/2. Second case: (x-3/2) was a negative number, whose absolute value was greater than 5. That means that (x-3/2) was a number that was less than negative 5:, Review by Joe Opaleski. Apr 24, 2024, 8:14 AM PDT. Kalahari Resort is one of the many water parks in Wisconsin Dells, Wisconsin. Joe Opaleski. I spent a day in …, |4-8i|=sqrt{4^2+(-8)^2}=sqrt(16+64)=sqrt80=4sqrt5. Taking, sqrt5~=2.236, |z|~=4xx2.236=8.944 Absolute Value or Modulus |z|of a Complex No. z=x+iy is defined by, |z ..., 4.1: Piecewise-Defined Functions In preparation for the definition of the absolute value function, it is extremely important to have a good grasp of the concept of a piecewise-defined function. 4.2: Absolute Value The absolute value of a number is a measure of its magnitude, sans (without) its sign. 4.3: Absolute Value Equations, 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. , The absolute value of 4 is 4. The formal definition of the absolute value of a number x, denoted | x |, is the distance... See full answer below. , $\begingroup$ Since the original distribution is symmetric about $0$, the density for positive values of the absolute value is double the density of the original random variable for the same value, while the density for negative values of the absolute value is $0$., The absolute value of the complex number -4- sqrt 2i is sqrt 18. Explanation: The absolute value of a complex number is the distance between the number and the origin on the complex plane. To find the absolute value of the complex number -4- sqrt 2i, we need to find the magnitude of the number., Find the Absolute Value of ... Calculator. Input any integer or decimal value into ourAbsolute Value Calculator. You can type a fraction by typing the numerator then '/' then the denominator. Examples: 3/4 (three-quarters); 2/5 (two-fifths); 4/9 (four nineths). You can type a mixed number by typing the number part, then a space then the fraction., About. Transcript. 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, videos, and solutions to help Grade 6 students understand the absolute value of a number as its distance from zero on the number line. Students use absolute value to find the magnitude of a positive or negative quantity in a real-world situation. New York State Common Core Math Grade 6, Module 3, Lesson 11. Opening Exercises., The absolute value of a number is its distance from zero on the number line. The symbol for absolute value is @$\begin{align*}| \ |\end{align*}@$ . Let's look at an example. @$\begin{align*}|-3|\end{align*}@$ This is read as "the absolute value of -3". To figure out the absolute value of -3, think about how far the number -3 is from zero ..., The Absolute Value of Mike (2011) Kathryn Erskine Mike is a fourteen-year-old with dyscalculia, but his father is a professional mathematician and is quite insistent that he should learn math and go to Newton High, the math magnet school.