Question: (a) On the slope field for dIdS in Figure 9.45, draw the trajectory through the point where I = 1 and S = 400. (b)

(a) On the slope field for dI∕dS in Figure 9.45, draw the trajectory through the point where I = 1 and S = 400.
(b) How many susceptible people are there when the number of infected people is at its maximum?

I (infecteds) 400 200 1// S (susceptibles) 400 800 Figure 9.45: Slope

I (infecteds) 400 200 1// S (susceptibles) 400 800 Figure 9.45: Slope field for dI/dS = -1 + 192/S

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