Question

What is the slope of the line that passes through the points (-9, -9) and (-9, -7) Write in simplest form.

Answer 1

Undefined slope, vertical line

Explanation:

Slope =
`(y_(2) -y_(1))/(x_(2)-x_(1))`

Slope =
`(-7 -(-9))/(-9-(-9)) = (-7+9)/(-9+9) =(2)/(0)` = Undefined

Since the slope is undefined, you would have a vertical line.