Question

Choose the system of equations which matches the following graph

Answer 1

a.x + 2y = -10
3x - y = 12
b. x - 2y = -10
3x - y = 12
c. x + 2y = -10
3x + y = 12
d. x - 2y = -10
3x + y = 12

Answer 2

Looks like you can see the point of intersection on the given graph.
Solving for the point of intersection using each system of equations is one method of solving the problem.

Another method is to plug in the value of either x or y into each system to see if they will both give you the same y value or x value.

Answer 3

Which is essentially checking to see if they really do intersect at that point.
If it isn't a tricky question, that should give you your answer.