Question

Which line is perpendicular to a line that has a slope of 1/2?

line HJ

line AB

line CD

line FG

Answer 1

line HJ on edge

Explanation:

Answer 2

HJ

Explanation:

For a line to be perpendicular to another line, you must find the negative reciprocal.

The negative reciprocal of 1/2 is -2.

The only line with a slope of -2 is line HJ because it goes down 2 for every 1 to the right.