1. (9 points) For the function f(x) = 3x5 -5x3 a) Find the critical values for f. Find all of the intervals on which f is increasing and the intervals on which f is decreasing. b) Identify any local maximum and minimum points. These should be written as ordered pairs. c) Find the absolute maximum and absolute minimum on the interval [-2,2]. d) Find all the intervals on which f is concave up and the intervals on which f is concave down