Question

Find the slope of the line passing through the points (4,1) and (4,-5)

Answer 1

Explanation:

(4 , 1) ; x₁ = 4 and y₁ = 1

(4 , -5) ; x₂ = 4 and y₂ = -5

The slope of the the line is undefined as the line is parallel to y-axis