Question

The slope of a line is -8. What is the slope of a line that is perpendicular to that line?

A) -8
B) -1/8
C) 1/8
D) 8

Answer 1

C

Explanation:

Slope m = -8 perpindicular slope = -1/m = 1/8

Answer 2

B

Explanation:

• For 2 lines to be perpendicular, their gradients must have a product of -1
• Only one that matches this is B