Both a function and its derivative are given. Use them to find all critical numbers. 2 3 X - 6 f(x) = x-9x'+6 f(x)= 3 X_ 3 _ Locate the absolute extrema of the lnction f(x) _ x 483: on the closed interval [CL 8] 0a) absolute max: "\"8) = 128 ; absolute min: J14) = 128 Oh) (4) = -123' (3) = 123 absolute max: f ; absolute min: f O c) absolute max: f(3) = 128 ; absolute min: no absolute min 0 d} =123 no absolute max; absolute min: '13) O E} no absolute max or mjn