Chapter 1.2, Problem 13E

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8th Edition

James Stewart

ISBN: 9781305270343

Textbook Problem

If the recommended adult dosage for a drug is D (in mg), then to determine the appropriate dosage *c* for a child of age *a*, pharmacists use the equation *c* = 0.0417*D*(*a* + 1). Suppose the dosage for an adult is 200 mg.

(a) Find the slope of the graph of *c*. What does it represent?

(b) What is the dosage for a newborn?

(a)

To determine

**To find:** The slope of the graph *c* and interpret it.

Explanation

Rewrite the given equation as

In the equation,
*D* and the *c*-intercept is 0.0.417.

Given that the dosage of the adult (*D*) is 200 mg.

Substitute

(b)

To determine

**To find:** The dosage for a newborn.

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