Sorry if there are a lot of points but it will help me out a lot on the exam

this is about Applications of Derivatives

Use the function f(x) = -x^3 + 48x -3 to complete the following questions

a) Identify the critical values of the function

b) Determine the absolute Extrema on the closed interval [-2, 7]

c) Identify the intervals of increasing and decreasing

d) Identify the relative extrema of the function

e) Identify the intervals of concavity as concave up and concave down

f) Identify any points of inflection