11. 4\\ have invaded my library! They recruit more of the undead at the rate: Mice dz E : f(2) = (z 1)(z + 1) [ln(900) ln(z)], Where t is time and z is the number of punishers. a) Determine all biologically meaningful steady states (equilibrium points). b) Determine the stability of each steady state in Part a), using the derivative test. c) Draw a phaseline diagram. d) If 895 are in the library initially, how many will there be eventually? 1' Mice