Question

The Problem

which coordinate is a solution to the equation: 7x + 4y = 9?
a (4, -2)
b. (-33)
c. (3-3)
d. (-4,2)

Answer 1

C. (3,-3)

Explanation:

7 ( 4) + 4 (-2) = 9 false

7 ( -3) + 4 (3) = 9 false

7 ( 3) + 4 ( -3) = 9 true

7 ( -4) + 4 ( 2) = 9 false