Relating Graphs: For the oscillator DE + 0.25x = 0, Fig. 4.1.4 shown previously linked solution graphs and phase portrait. Parts (a), (b), (c), and (d) relate to that figure.
(a) Mark on the phase portrait the starting points (where r = 0) for the trajectories shown. (b) Write explicit solutions for x(t) and What is the value of (0?

Transcribed Image Text:

FIGURE 4.1.7 Graphs of the solutions that match the IVPs in Problems 40-43.