Question

Which pair are solutions to the equation?

4xy + 8 = 36

A.
(7, 1) and (3, 2)

B.
(4, 9) and (3, 2)

C.
(1, 7) and (4, 9)

D.
(1, 7) and (7, 1)

Answer 1

try plugging in the pairs and see which one makes the equation true

Answer 2

only way to solve it to guess and check or graph y = (28) / 4x