
Concept explainers
(a)
To find: The slope of the graph c and interpret it.
(a)

Answer to Problem 11E
The slope of the function c is 8.34 mg, which represents the rate of change of dosage.
Explanation of Solution
Rewrite the given equation as
In the equation,
Given that the dosage of the adult (D) is 200 mg.
Substitute
Thus,
Therefore, the slope is 8.341, which represents the average rate of change of the dosage in mg. The dosage is calculated for a one year old child.
The graph of c is shown below in Figure 1.
From Figure 1, it is observed that the graph of c is a straight line as the function is linear.
(b)
To find: The dosage for a newborn.
(b)

Answer to Problem 11E
The dosage for a newborn is 8.34 mg.
Explanation of Solution
Since age (a) of a newborn child is 0, substitute
Therefore, for a newborn child the advisable appropriate dosage is 8.34 mg.
Chapter 1 Solutions
Single Variable Calculus: Concepts and Contexts, Enhanced Edition
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