Refer to the image below for the graph.
Work Step by Step
Note that $f(x) = y$. Thus, the given equation is equivalent to $y=2$. RECALL: The graph of the equation $y=k$ is a horizontal line. Every point on the line has the same y-value. Thus, to graph $y=2$, you can plot the points (0, 2), (-3, 2), and (3, 2). Then, connect them using a line.