Question

On a coordinate plane, 4 lines are shown. Line A B goes through (negative 4, negative 2) and (4, 2). Line C D goes through (negative 4, 0) and (4, negative 4). Line F G goes through (negative 3, negative 3) and (0, 3). Line H J goes through (negative 1, 3) and (1, negative 1).
Which line is perpendicular to a line that has a slope of One-half?

line AB
line CD
line FG
line HJ

Answer 1

Perpendicular slope to 1/2 is -2 (negative reciprocal).

Slope of HJ = (-1 - 3)/(1 - (-1)) = -4/2 = -2.

So line HJ.