Absolute value
Absolute value
Definition: Let be any real number. Then we define the absolute value of as:
Comments: Absolute value can be regarded as the distance from number to .
Additional resources
The following clip (created by Sal Khan and Monterey Institute for Technology and Education) illustrates how to to find the absolute value of 5, -10, and 12.
References
Khan Academy. (n.d.). Absolute value examples (video). Khan Academy. https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-negative-number-topic/cc-6th-absolute-value/v/absolute-value-of-integers.
Weisstein, Eric W. "Absolute Value." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/AbsoluteValue.html
Formative assessment
Use the following applet to find the absolute value of a few numbers.