## Precalculus (6th Edition)

RECALL: The graph of the equation $x=h$ is a vertical line whose x-intercept is $(h, 0)$. Every point on the line has an x-coordinate of $h$. Thus, the line $x=-5$ is vertical and every point on the line has an x-coordinate of $-5$. This means the following points are on the line: $(-5, 5)$ and $(-5. -5)$. Plot the two points above and connect them using a straight line. (Refer to the graph in the answer part above.)