Which pair of equations when graphed has lines that are perpendicular?

A. Y = 2x - 7

X + 3y = 3

B. 2y = - 3x + 5

2x - 3y = 4

C. 5x - 8y = 9

12x - 5y = 7

D. 3X + 6Y = 8

Y = 3x - 8

Option B

when rearranged the two equations are;

y = - 3/2x + 5/2 and y = 2/3x + 4

they are perpendicular as the gradient are opposite each other - 3/2 is the negative and flipped version of 2/3