Question

Find the slope of the line passing through the points (9,2) and (9,-5)

Answer 1

slope is undefined

Explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (9, 2) and (x₂, y₂ ) = (9, - 5)

m =
`(-5-2)/(9-9)` =
`(-7)/(0)`

Since division by zero is undefined then the slope is undefined.

This indicates that the line is vertical.