Question

For each ordered pair, determine whether it is a solution to the system of equations.

y=2x+8
4x-2y=-16
(x, y)
(-3,2)
(0, -7)
(5,-3)
(5,18)
Is it a solution?

Answer 1

Explanation:

(-3, 2) and (5, 18) are solutions

if you substitute each ordered pair into the equations, they are true.

y = 2x +8

2 = 2(-3) + 8

2 = -6 + 8

2 =2

4(-3) - 2(2) = -16

-12 - 4 = - 16

and

18 = 2(5) + 8

18 = 10 + 8

18 = 18

4x -2y = -16

4 (5) - 2(18) = -16

20 -36 = -16

-16 = -16