Question

What is the slope of a line that is perpendicular to the line x = –3? –3 0 1/3 undefined

I know the answer is 0, but I would love it if someone could give an explanation of why...thanks!

Answer 1

slope = 0

Explanation:

The line with equation x = - 3 is a vertical line parallel to the y- axis

A perpendicular line is therefore a horizontal line parallel to the x- axis

The slope of the x- axis is zero, hence the slope of the horizontal line is

slope = 0