2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y=4x-1 y=2x-1 y=1+3x y=3x-1 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y+2x=5 y=2x-5 x+3y=0 y=1-5x 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y-x=-2 x-y=-2 x+y=1 2x-y=2 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y=3x x-3y=0 y=x+3 x=3y 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 2x+y+1=0 x-2y-1=0 3x-y=0 2x+y=1 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y-3x=2 3x+y=2 y=3x-1 y=3x+1 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 x+y=4 y-x=4 x-y=4 y=1-4x 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y=1-x y=2x+1 y=5 y=-5 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y=2x y=-2x y=x+2 y=2-x 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 y=2x+6 x+y=6 2x-y=6 y-2x=6 |