Answer
Refer to the image below for the graph.
Work Step by Step
Note that $f(x) = y$
Thus, the given equation is equivalent to $y=1$
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 $y=1$, you can plot the points (0, 1), (-3, 1), and (3, 1).
Then, connect them using a line.
