Consider the function f (x) =- 4x (+ 2)3 [Is di] (a) Find the Intervals for winch of is increasing / dessersing [10 pts ] (b) Find the bead may, and local min and write them of an ordered pair, ") Consider the first derivative of ( x ) = (x+3 ) (2X-3) [ised] (@) Find the intervals for which f is concave up / doing [ pts ] ) Find any pants of inflection / write it as, an ordered pis)