To answer this question, we need to remember that we have here a vertical line. Vertical lines have the form:
Where a is the x-value where the line passes through the x-axis. Therefore, the line x = -5 is a vertical line (parallel to the y-axis) that passes through the point (-5, 0). Therefore, we can graph this line as follows:
In summary, therefore, we can see that the red line above is the line x = -5.
We need to draw one arrow at the extremes of the line - to show we have a line here.