#### Answer

The curve is not a function of $x$.

#### Work Step by Step

RECALL:
The Vertical Line Test states that if all vertical lines will pass through a graph in at most one point, then the graph represents a function of $x$.
Note that the vertical line $x=-1$ passes through the given graph in an infinite number of points.
The given graph fails the vertical line test.
Thus, the graph does not represent a function of $x$.
The domain is the set of $x$ values covered by the graph, while the range is the set of $y$ values covered by the graph of the function.
The graph covers the x-values from $-3$ to $2$.
Thus, the domain is $[-3, 2]$.
The graph covers the y-values from $-2$ to $2$,
Thus, the range is $[-2, 2]$.