The unemployment rate can be modeled by: U = U(t) = 5cos(2tπ/2) + sin(2tπ) + 6 for 0 ≤ t ≤ 25, where t is in years and t = 0 represents January 1, 1985.
The GDP growth rate can be modeled by: G = G(t) = 5cos(2tπ+ 5) + 2 for 0 ≤ t ≤ 25, where t is in years and t = 0 represents January 1, 1985.
13. Graph U = U(t) and G = G(t) on the same set of coordinate axes on the given interval for t. Label both axes and both graphs.