The population density y of deer fluctuates as a function of the amount x of grass in its environment. This relationship is given implicitly by the equation y13 In(y) - 26 In(x) = 13 - 6 where e is the usual natural number of Calculus. (a) 0.5 points. Which of the following point(s) lie on this curve? Choose all that apply. (0, 13) (6, 0) (1, 1) (e, e) none of these (b) 1 point on PAPER: differentiate the equation of this curve implicitly with respect to . (c) 0.5 points : Find the rate of change of the population density of deer relative to grass at the point (z, y) = (e,e). Answer: y' = "(give an exact answer)