Please show work.

Problem 9: Find the critical numbers of f. What does the Second Derivative Test tell you about the behavior of f at these critical numbers? What doest the First Derivative Test tell you? /() =1(x-1)3 Problem 10: A drug response curve describes the level of medication in the bloodstream after a. drug is administered. A surge function S(t) = AtPe * is often used to model the response curve, reflecting an initial surge in the drug level and then a more gradual decline. If, for a particular drug A = 0.01, p = 4, k = 0.07, and t is measured in minutes, estimate the time corresponding to the inflection points and explain their significance. Using Desmos graph the drug response curve and mark on the graph the inflection points