Exercise43 relate to Fig. 1. When a drug is injected into a person’s muscle tissue, the co...

Exercise43 relate to Fig. 1. When a drug is injected into a person’s muscle tissue, the concentration y of the drug in the blood is a function of the time elapsed since the injection. The graph of a typical time–concentration function f is given in Fig. 1, where t = 0 corresponds to the time of the injection.

Figure 1 Drug time–concentration curve.

What is the concentration of the drug when t = 1 and t = 5?