4. Determine the first and second derivatives for each of the following functions: (a) (8 points) f(x) = 3x2 + 7Vx - 9 -61 (b) (8 points) 9(x) =12. ex (c) (8 points) h(x) = 2:48 (d) (8 points) j(x) = In (2x + 3) () @ pant) Intervalo where Send Intervals whore flee) is codome down