Find and graph (on common axes) the solutions of

for k = 0, 1, 2, . . . ., 10 (or as far as you get useful graphs). For what k do you get elementary functions? Why? Try for noninteger k, particularly between 0 and 2, to see the continuous change of the curve. Describe the change of the location of the zeros and of the extrema as k increases from 0. Can you interpret the ODE as a model in mechanics, thereby explaining your observations?

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y" + kx¹y' + y = 0, y(0) = 1, y'(0) = 0,