I really need help with these practice questions please .

4. Use the following graph of y = f(x) to sketch the graph y = f'(x). In your solution, please highlight the points corresponding to (-1, 1.25), (0, 1), (1, 1.25). (1, 1 25) -2- (1, 1.25) (0, 1) -2 0 -2- If you like, you may use the following graph paper to graph y = f'(x): 2- -2 0 N- -25. Notice that if we apply the definition of the dervative f'(a) = lim J(ath) - f(a) " to f(x) = e" and h -+0 h a = 0 we get the limit: eoth - 20 lim - 1 lim h 1-+0 h We say that these limits represent the derivative of y = e" at a = 0. In this question, you will apply this process in reverse. Given a representation of a derivative, you'll determine the function f(x) and a. Determine the function f(x) and the value a for the following limit: lim [2(3 + h)2 - (3 + h)]-15 h -+0 h