Question

Decide whether the given ordered pair is a solution to the system of equations.

y=-4x
y=1/2x+7
(-2,8)

Answer 1

Answer: y=4x-7

Explanation:

Answer 2

No, ordered pair is not a solution to the system of equations.

Explanation:

y = -4x

substituting (-2, 8)

8 = -4(-2)

8 = 8

therefore the point satisfies this equation

y = (1/2)x + 7

8 = (1/2)-2 + 7

8 = -1 + 7

8 = 6 (false)

therefore point doesn't satisfy second equation.

Hence ordered pair is not a solution to given system of equations.