4. (14 points) This question is broken into two parts. Each Part 1 questions. All such questions are worth 2 points. THER (a) Use the graph of y = f(x) to answer these questions. (Each answer should be a num- ber or "does not exist".) W mgm) : L'- J3) 1im----f(4+h)-f(4) = "Ft" h->O h fur Eva vr"? ' bit" :' (7 ' (a4) At sc = lgaiuate d-d-f(x2)= N "'2 v x . Wv ' (b) The graph of the first derivative 9' of a continuous function g- is shown on the domain 0 < ac < 9. l ' . 1 , . n . . . Give one interval on "Wh1ch 9 1s de- ceas'ng' r 1 : "xl, [BIS]; ' (b2) Find a raluerof x'lwhere g has s local minimum: (. -)-r l 's a series of short answer RTIAL CREDIT; 1.e., . means the point is inciuded in the 0 means the point is not imtuded. in the graph Dw y=9'(X)