The direction fields of three DEs are shown in Fig. 2.2.3. (a) Label the equations linear or

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The direction fields of three DEs are shown in Fig. 2.2.3.
(a) Label the equations linear or nonlinear. Of the two that are linear, which is homogeneous and which is non homogeneous?
(b) Explain (algebraically) why the sum of two solutions of a homogeneous linear DE is a solution. Verify that the negative of such a solution is also a solution, so y = 0 must be a-solution.
(c) Interpret the observations of pan (b) for the direction fields in Fig. 2.2.3. Visualize two solutions and then their sum. Does the sum follow the direction field?
The direction fields of three DEs are shown in Fig.
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Differential Equations and Linear Algebra

ISBN: 978-0131860612

2nd edition

Authors: Jerry Farlow, James E. Hall, Jean Marie McDill, Beverly H. West

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