quilibrium points of this system (no need to look outside the portion of state space depicted above).  Use the notebook to double check your answer: simulate the evolution of the system setting the equilibrium points you identified as initial conditions.</li>

        <li>Determine whether the equilibria you identified at the previous point are attractive and/or stable i.s.L.  Explain briefly your reasoning, and feel free to include some plots generated with the notebook in your written answer.</li>

      