Determine which two equations represent perpendicular lines.

Question

a).y=5/3x-5
b).y=5x-5/3
c).y=-1/5x+5/3
d).y=1/5x-5/3

Answer 1

perpenduclar lines have negative reciprocal slopes

y= 3x + 3
y= -1/3 x + 55 are perpendicular lines.

Answer 2

Thanks