8. (1 point) Let f(x) =x -6x +6. Find the critical point c of f(x) and compute f(c). The critical point c is = The value of f(c) =. Compute the value of f(x) at the endpoints of the interval [0, 6]. f(0) = f(6) = Determine the min and max of f(x) on [0, 6]. Minimum value = Maximum value = Find the extreme values of f(x) on [0, 1]. Minimum value = Maximum value =