Question

The slope of a line is 1/3 . What is the slope of a line perpendicular to this line? A. -3 B. 3 C. 1/3 D. -1/3

Answer 1

-3

Explanation:

Answer 2

The answer is option A

Explanation:

Since the lines are perpendicular the slope perpendicular line is the negative inverse of the original line and when they are multiplied should give - 1

Let m be the slope of the perpendicular line

That's

1/3 × m = - 1

multiply through by 3

m = - 3

The slope of the perpendicular line is - 3

Hope this helps you