.) [12 points] The graph of the derivative ( that is ") is given below. Assuming f is continuous everywhere, answer the following questions. No justification is required. (a) [3 points] Determine the critical values of f. dx (b) [3 points] Determine the interval (s] on which 4 10 1 13 13 12 f is increasing. -2 (c) [3 points] Determine the intervals on which / is concave up. (d) (3 points] Arrange the values f"(-3), /"(2), and f"(1000) from most negative to most positive. Most Negative