6 Find the most general function F such that F'(x) = - - 15. F(x) =\f9x8 + 17 Find the most general function F such that F'(x) = Vx F(x =\fUse the following figure, which shows a graph of f(x) to find each of the indicated integrals. Click on the graph to open it in a new window. The first area (with vertical, red shading) is 15 and the second (with oblique, black shading) is 5.