5. Consider the following first order system: (a) Find the equilibrium point(s). (b) Obtain linear functions that approximate the system for each equilibrium point. (c) Use Matlab to plot the original function (3 +2 - 2r) and the linear approx- imations all on the same plot. For the x axis limits on the plot use -2.5 to 2.5 5. Consider the following first order system: (a) Find the equilibrium point(s). (b) Obtain linear functions that approximate the system for each equilibrium point. (c) Use Matlab to plot the original function (3 +2 - 2r) and the linear approx- imations all on the same plot. For the x axis limits on the plot use -2.5 to 2.5