Let f x x 8x 4 a Find the x value c of the critical point of f x and compute f c The x value of the critical point is c The value of f c b Compute the value of f x at the endpoints of the interval 0 8 f 0 f 8 c Determine the minimum and maximum values of f x on 0 8 Minimum value Maximum value d Find the extreme values of f x on 0 1 Minimum value Maximum value