(1 pt) Consider the function f(x) = -2x3 + 27x2 - 84x + 8. For this function there are three important intervals: (-co, A], [A, B], and [B, co) where A and B are the critical values. Find A and B For each of the following intervals, tell whether f(x) is increasing (type in INC) or decreasing (type in DEC). (-00, A]: [A, B]: [B, CO) f(x) has an inflection point at x = C where C is Finally for each of the following intervals, tell whether f(x) is concave up (type in CU) or concave down (type in CD). (-00, C]: [C, 00)