Question: Concern the concentration, C, in mg per liter, of a drug in the blood as a function of x, the amount, in mg, of the drug given and t, the time in hours since the injection. For 0 ≤ x ≤ 4 and t ≥ 0, we have C = f(x, t) = te-t(5-x).
Graph the following single-variable functions and explain their significance in terms of drug concentration.
(a) f(4, t)
(b) f(x, 1)