Question

Is (7,-2) a solution to the equation x - 4y = 15?

Please show work to help me understand.

Answer 1

yes

Explanation:

x - 4y = 15

Substitute the point into the equation and see if the equation is true

7 -4(-2) = 15

7+8 = 15

15 =15

This is true so the point is a solution to the equation