Question

Need help with understanding table of ordered pairs , I have two left and that's basically all.

Answer 1

A

Explanation:

The easiest way to figure this out is to substitute in the variables. So for a, 2=-5+7 is correct, and 7=0+7 is correct as well. If you were to look at the other answers, you would see that the equation would not match up. Hope this helps!