# How do you find the domain and range for y=absx?

Apr 18, 2016

There are no values of $x$ that would make the function undefined.
So the domain is $x \in \left(- \infty , + \infty\right)$
By the absolute bars, $y$ can never be negative, but it may be $0$
So the range is $y \in \left[0 , + \infty\right)$