Answer
Please see the graph.
Domain: $(−∞,0]$ U $[2,∞)$
Range: $[−3,−1]$
Work Step by Step
The left side of the graph (where $x≤0$) is represented by $y=−1$.
The right side of the graph (where $x≥2$) is represented by $y=−3$.
All real numbers can be used for values of $x$ (except $x$ cannot equal values between $0$ and $2$), and the only possible values for $y$ are $−1$ and $−3$.