3. Thc graph of is given below. Use this to sketch thc graph of thc derivative function, 4. Differentiate each of the following using only thc power rule (i.e. without using the quotient and product rules). (a) (b) (c) '21:3 + 3:r2 + x 4+2x (d) (c) (f) k(t) l) + 21 [2