Refer to the graph below.
Work Step by Step
The graph of an equation of the form $y=k$ is a horizontal line whose y-intercept is $0, k)$. Each point on the line has a y-coordinate of $k$. Thus, the graph of $y=-2$ is a horizontal line whose y-intercept is $(0, -2)$. Each point on the line has a y-coordinate of $-2$. This means that the following points are all on the line: $(-2, -2)$, $(0, -2)$, and $(2, -2)$ Plot the three points listed above then connect them using a line to complete the graph. (refer to the attached image in the answer part above for the graph)