Question

For each ordered pair, determine whether it is a solution to 2x - 5y=11.

Is it a solution?
(x, y)
(3, -1)
(-7,-5)
(-9,4)
(4,2)

Answer 1

(3, -1) Yes

(-7,-5) Yes

(-9,4) No

(4,2) No

Explanation:

Plug them in

(3, -1)

2(3) - 5(-1)

6 + 5 = 11

(-7,-5)

2(-7) - 5(-5)

-14 + 25 = 11

(-9,4)

2(-9) - 5(4)

-18 - 20 = -38

(4,2)

2(4) - 5(2)

8 - 10 = -2