Question

Line m has a slope of 0. Line n is perpendicular to line m. What is the slope of line n?

Answer 1

0 as -1 ÷ 0 = 0. Line m is either x = 0 or y = 0 and based on that line n would be either y = 0 or x = 0

Answer 2

Line n has an undefined slope.

Line n must be a vertical line since it is perpendicular to line m, which is horizontal. All vertical lines have an undefined slope (since division by 0 is undefined).

Explanation: