Answer
Domain = $\{x\in \mathbb{R}\ |\ x\leq-2$ or $x\geq 2\}$
Range = $\{y\in \mathbb{R}\ |\ y\geq 0\}$
Work Step by Step
The points (x,y) on the graph are such that
x can be any number left of -2 (inclusive) or right of 2 (inclusive)
(Domain = $\{x\in \mathbb{R}\ |\ x\leq-2$ or $x\geq 2\}$,)
y can be any nonnegative number
(Range = $\{y\in \mathbb{R}\ |\ y\geq 0\} $)
