(Solved): 2. (25 pts) Let f() = 1 +? -- 3x - 2 a) Determine the critical points of f. Show work that leads to ...

2. (25 pts) Let f() = 1 +? -- 3x - 2 a) Determine the critical points of f. Show work that leads to your answer. b) Use the second derivative test to determine if f has a relative extremum at each critical point and state which type. c) Determine the interval(s) for which is concave up.