0 x 2y 4 July 8, 2019 16 32 64 128 2 0 x 2y 4 X 2y 4 0 2x 4y 12 X 2y z 4 0 2x 4y 0 x 2y 4 X 2y 4 0 graph X 2y 4 0 in slope intercept form X 2y 4 0 grafica X 2y 4 0 is a common tangent