Question

Find the slope of the line passing through the points (7,3) and (7,-8).

Find the slope of the line passing through the points (-7, 2) and (-7,8).

Answer 1

X=7. Undefined
X=-7. Undefined

Answer 2

1. slope = 0 2. slope = 0

Explanation:

1. y2 - y1 / x2 - x1

-8 - 3 / 7 - 7

-11/0

= 0

2. y2 - y1 / x2 - x1

8 - 2 / -7 - (-7)

6 / 0

= 0