Question

This solution means in month 2 (that is, February), both functions have the same value (f(2) = g(2) = 4), which means the number of imports and the number of exports are the same.

Answer 1

To determine the solution of a system of equations graphed you identify the point of intersection of the graphs as that is the values that the functions share. The functions in the system have the same values in the point of intersection.

Then, the solution for the given system is (0,2)