Answer these questions please:

Use the derivative f'(x) = (x - 2)(x + 2)(x + 4) to determine the local maxima and minima of f and the intervals of increase and decrease. Sketch a possible graph off(f is not unique). E) The local maximum/maxima is/are at x = Cl. (Use a comma to separate answers as needed.) Find the intervals on which f is increasing and decreasing. f(x) = 4x# - 2x + 10 . . . On which interval(s) is f decreasing? O A. (- 00,0), 12:00 OB. 0, 2 O c. - 00. - 71 0, 2 OD. - Co. - N/ -Find the values of x for which the given function is concave up, the values of x for which it is concave down, and any points of inection. y= -x4+4x3-4x+7 (3 When is the graph of y concave up? if] A. x 2 if} D. x> 2 Find the relative extreme points of the function, if they exist. Then sketch a graph of the function. f(x) = 9x2 2x3