The graph of y = f(x) has the line x = 5 as an axis of symmetry. The graph also passes through the point (7,-8). Find another point that must lie on the graph of y = f(x).

Because the graph is symmetric to x = 5, the point ( 5 - (7 -5) , -8) = (5 - 2 , -8) = (3 , -8)

must also be on the graph