Question

4y=-x-5 -y=-4x-4
perpendicular
parallel
neither

Answer 1

-y = -4x - 4 --- multiply by -1 to make y positive
y = 4x + 4
slope = 4 and y intercept = 4

4y = -x - 5
y = -1/4x - 5/4
slope = -1/4 and y intercept = -5/4

Perpendicular lines will have negative reciprocal slopes.
4 and -1/4 are negative reciprocal slopes....these lines are perpendicular