Question

Select the pair of equations whose graphs are perpendicular.
a.5x – 8y = 9
12x – 5y = 7
b. x + 6y = 8
y = 2x – 8
c.y = 2x – 7
x + 2y = 3
d.2y = –3x + 5
2x + 3y = 4

Answer 1

The answer is C.

I graphed it.

Answer 2

thanks!