5. Consider the following autonomous first-order differential equation. dy da = y²(4- y²) (a) Which of the following is the phase portrait for the differential equation? 2 0 0 A B с D (b) List the critical points and classify each critical point as asymptotically stable, unstable, or semistable. (c) Sketch the actual solutions in the zy plane. Make sure to sketch the equilibrium solutions. Make sure you sketch typical solution curves in all the regions in the 2- y. Make sure to label your graph. Y 4 6 82 2 2 0 2

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