Question

A line has a slope of -4/5. Which ordered pairs could be points on a line that is perpendicular to this line? Check all that apply.

(–2, 0) and (2, 5)
(–4, 5) and (4, –5)
(–3, 4) and (2, 0)
(1, –1) and (6, –5)
(2, –1) and (10, 9)

Answer 1

It would be -3,4) and (2,0). If -4/5 is the slope you move 4 down and 5 over to land on point (2,0)