Question

Find the slope of the line that passes through (5,9) and (3,9)

Answer 1

slope = 0

Explanation:

Calculate the slope m using the slope formula

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

with (x₁, y₁ ) = (5, 9) and (x₂, y₂ ) = (3, 9)

m =
`(9-9)/(3-5)` =
`(0)/(-2)` = 0

Answer 2

Since the Y coordinate is constantly 9, it is a horizontal line.

Explanation: