Please do not use calculator and show all work. Thank you.

6. Below is the graph of the derivative of some function. ' --------- 4:5 (a) Sketch the graph of a possible original function. (b) Is it possible there is a different original function? If yes, sketch its graph. If not7 explain Why not. 7. Write the expression for a function f (:13) such that f'(:13) = $3 + %e$