5. This figure shows the graph of f, f', andf". Which curve (A, B, or C) corresponds to each? B 6. Sketch a possible graph of f given the graphs of f ' and f" below. (Just put it on the same axes.) YA y = f' (x ) y = f"(x) 20 x 7. Suppose f"(c) =0 and f"(x) changes sign from + to - at x = c. Which of the following statements are correct? Circle the letter(s) of your choice. a. f has a local maximum at x = c. b. f has a local minimum at x = c. c. f' has a local maximum at x = c. d. f ' has a local minimum at x = c. e. f has a point of inflection at x = c