Answer:
Parallel:
y=3x-7 y=-4x-1 y=1/3x +9 -9x+12y=24 y=x-3
y=3x+1 8x+2y=14 x-3y =3 y=3/4x -5 x-y=8
Perpendicular:
y=-2/5x +3 y=-1/4x 2x+7y=28 y=-5x+1 x+y=7 5x-10y=-20
y=2/5x +8 y=4x-5 7x-2y=4 x-5y=30 x-y=9 y=-2x+6
10x+8y=16
5y=4x-15
Neither:
3x+2y=8 4x+9=18 y=5/3x +7
2x+3y=-12 y=4x+9 6x-10y=10
Explanation: