## Intermediate Algebra (6th Edition)

The absolute value of x, written by the form $|x|$, is the distance between x and 0 on the number line. It is equal to: x if $x\geq0$ -x if $x\lt0$ Since $0\geq0$, $|0|=0$ In other words, there is a distance of 0 between x and 0 on the number line when $x=0$.