Answer
Function
domain is $[-2, 2)$.
range is $[0, 3]$.
Work Step by Step
All vertical lines will pass through the graph at a maximum of one point.
Thus, the graph represents a function.
The x-values are from $-2$ to $2$ (but not including 2 itself as a hole was used to plot the point).
Thus, the domain is $[-2, 2)$.
The y-values are from $0$ to $3$.
Thus, the range is $[0, 3]$.