Question

which ordered pair is NOT an solution? y=-4x - 9 ?

(-9, 27)
(3, -21)
(-6, 15)
(5, -28)

Answer 1

@mathstudent55

Answer 2

plug your solutions in and see which ones work :)

Answer 3

@dan815

Answer 4

You need to try them one by one until you find a choice that does not work.

y = -4x - 9

Let's try choice C.
(-6, 15) Replace x with -6 and y with 15 in the given equation. If the equation is true, then the ordered pair works.

15 = -4(-6) - 9
15 = 24 - 9
15 = 15
This is a true statement, so choice C. is a solution.

Do the same to choices A, B, and D, and find which one does not work.

Answer 5

Thank you

Answer 6

wlcm