Show that the linearization of the system in (8) at .3; 0/ is u0 D 3u 3v, v0 D 2v. Then show that the coefficient matrix of this linear system has the positive eigenvalue 1 D 3 and the negative eigenvalue 2 D 2. Hence .3; 0/ is a saddle point for (8). 2

L20 - 3 dy 2 3 ex. Now we can ﬁnd if x y − 4x = y . dx 2 2 ex. Find the sl√pe...