Answer
Refer to the graph below.
Work Step by Step
RECALL:
A line whose slope is $0$ is a horizontal line.
Horizontal lines have equations of the form $y=k$ and have a y-intercept of $(0, k)$.
All points on the line have a y-coordinate of $k$.
Thus, the given line is a horizontal line whose equation is $y=1$.
All points on the line have a y-coordinate of $1$.
This means the following points are on the line:
$(0, 1)$, $(2, 1)$, and $(-2, 1)$
Plot the three points above and connect them using a line to complete the graph.
(Refer to the attached image above for the graph.)