19. Determine the function which corresponds to the given graph. (5 points) The asymptote is x = 5. 20, The decay of 601 mg of an isotope is described by the function A(t)= 601e'0-019t, where t is time in years. Find the amount left after 34 years. Round your answer to the nearest mg. Show all of your work for full credit. (5 points)