Question

x – 3y = 15 and y = -3x + 4

Determine whether the lines are parallel, perpendicular or neither
Show your work

Answer 1

x-3y=15
-3y=15-x
y=-5-1/3x

y=-1/3x-5 and y=-3x+4

If you plug these equations into a graphing calculator it can be determined that both lines are neither parallel or perpendicular.