Problem 5: Go to desmos . com/ calculator and for each of the following parts, create a function which has those properties. Then click the "Share Graph" button in the top right (next to the green "Sign Up" button) and put the copied url here (or email it at the same time you turn in your exam). a) A function which has at least two maximums, changes concavity at least once, and is continuous. b) A function whose left- and right-hand limits about an x-value don't match, has at least two extrema, and has at least two inflection points. c) A function which does not change concavity, is discontinuous, and whose derivative equals 1 at some r-value. d) A function with a vertical asymptote, at least one minimum, and whose limit exists at c = 2