y=2x+3
y=-4
y=x+1
y=-3x+5
y=-5x-3
y=-4
y=x+1
y=-3x+5
y=-5x-3
y=-4
y=x+1
y=-3x+5
y=-5x-3
y=2x+3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3
y=-5x-3