Health/Medicine. Graph the velocity function and estimate the intervals on which the velocity of air in the trachea is increasing and those on which it is decreasing.
Health/Medicine. Graph the velocity function and estimate the intervals on which the velocity of air in the trachea is increasing and those on which it is decreasing.
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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
Transcribed Image Text:71. Health/Medicine. Graph the velocity function and estimate
the intervals on which the velocity of air in the trachea is
increasing and those on which it is decreasing.

Transcribed Image Text:For Exercises 71 and 72, refer to the following:
During a cough, the velocity v (in meters per second) of air in the
trachea may be modeled by the function
v(r) = – 120r³ + 80r?
where r is the radius of the trachea (in centimeters) during the cough.
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