Week 3-Absolute Value

This week we learned about absolute values. an absolute value is the principal square root of the square of a number.

Ex. $\mid{-2}\mid=2$

This is the case because $\sqrt{(-2)^2}=\sqrt4=2$

So, a simpler way of defining an absolute value is to say that it is simply the number, disregarding its sign (positive or negative.)

Colin's Blog