X 4 4y 2 July 8, 2019 16 32 64 128 X 2y 4 2x 4y 8 X 2y 4 3x 4y 2 X 4y 4 x 2y 2 X 2y 4 0 2x 4y 12 0 4 x y 2 2x 4y X 2 4y 2 4 graph 3x 4y 4 x 2y 8 X 2y 4 3x 4y 7 X 2 4x 4 4y 2 X 2 4 4y y 2 X 4 x 2 4xy 4y 2 X =- 4y 4 2x 8y 8 X 4y 4 2x 8y =- 24 X 2y 4 2x 4y 12 by substitution method X 2y 4 2x 4y 8 represents
