Question

If (A, B) is the solution to the system of equations shown above, and A and B are integers, then what is the value of A+B?

A) -12
B) -6
C) 0
D) 6

Answer 1

A

Explanation:

The solution to the system of equations is at the point of intersection of the 2 lines, that is

(- 6, - 6) ⇒ A = B = - 6, thus

A + B = - 6 + (- 6) = - 6 - 6 = - 12 → A

Answer 2

A) -12

Explanation:

The point of intersection on the graph is (-6, -6). That is the solution to the system of equations. The sum of the solution values is ...

(-6) +(-6) = -12