E8. If f is a continuous function and if F '(x) = f (x) for all real numbers 1', then I: f (2x)b: = (A) 2F(3)2F(1) (B) %F(3)-%F(1) (C) 2F(6)2F(2) (D) F(6)F (2) l l (E) F(5)-3F(2) \fE10. The graph of f is shown in the figure. If g(x) = [ f(1) dt, for what value O d of x does g(x) have a maximum? (A) a (B) b (C) c (D) d (E) It cannot be determined