Question

What is the solution set of 4x=yand 2x - y=0?

OA. {(0.5, -0.5), (2, -8)}
OB. {(0, 0), (2,8)}
OC. {(1.5, 2), (8, 2)}
D. {(-1.5,-2), (2,8)}

Answer 1

`the \: answer \: is \: b \\ 4x = y \\ 2 {x}^(2) - y = 0 \\ 2 {x}^(2) - 4x = 0 \\ 2x(x - 2) = 0 \\ x = 0 \: and \: x = 2 \\ y = 0 \: and \: y = 8`