Let f(x) = -3t + 2 dt. We'll take the domain of to be a 20.(a) Find the intervals of increase or decrease of

Let f(x) = ²-3t + 2 dt. We'll take the domain of ƒ to be a 20.(a) Find the intervals of increase or decrease of f(x) and any local extrema.(b) Find the intervals of concavity of f(x) and any points of inflection.(c) Find the absolute max and min of f(x) on the interval [0,3].