## College Algebra 7th Edition

RECALL: The graph of an equation in the form $x=h$ is a vertical line. It has an undefined slope and has $h$ as its x-intercept. All the points on the graph of this line have $h$ as their x-coordinate. Thus, the graph of $x=-5$ is a vertical line, has an x-intercept of $-5$, and all the points on the line have $-5$ as their x-coordinate. Plot the x-intercept point $(-5, 0)$. Plot another point whose x-coordinate is $-5$. (e.g., $(-5, 3)$). Then, connect the two points together using a straight line. (refer to the attached image in the answer part above) Note that the line has no y-intercept.