Question

What is the slope of the line that passes through the points (9, 4) and (9,-5)?
Write your answer in simplest form.

Answer 1

Answer:

slope=undefined

Step-by-step explanation:

(-5-4)/(9-9)

-9/0

$\frac{(y_2-y_1)}{(x_2-x_1)}$

$\frac{(-5-4)}{(9-9)}$

$\frac{-9}{0}$

Because the denominator is 0, the slope is undefined.

Rise over run. The run is 0.