For each of the systems in 4 through 13: a. Find all the critical points (equilibrium solutions). G b. Use an appropriate graphing device to draw a direction field and phase portrait for the system. c. From the plot(s) in part b, determine whether each critical point is asymptotically stable, stable, or unstable, and classify it as to type. d. Describe the basin of attraction for each asymptotically stable critical point.dx/dt = x(2 x y), dy/dt = (1 y)(2 + x) 1

MGF 1107 Pre-Class Assignment 2A/2B Read through sections 2A and 2B in your book and answer the following questions. 1) Define: a) unit - A quantity used as a standard of measurement b) unit analysis - is a method used to convert from one unit of measure to another 2) Why do you think we need units when keeping track of real-life numbers Units help...