Question

Find the slope of the line through the points (13, 15) and (13, 19). Then find the slope of the line parallel and the line perpendicular.

Answer 1

Answer:

We must find the slope of the original line using slope formula*.

$m = \frac{19 - 15}{13 - 13} = \frac{5}{0} = 0$

Because the given points have the same x-coordinate, the slope is 0.

Given that the original line doesn't have slope, the other two lines won't have one either.