Heart Rate and Life Span Average Heart Rate Average Life Span 200 190 40 175 35 158 30 150 30 126 25 125 25 100 20 15 76 75 12 63 15 10 50 10 25 Squirrels Rabbits Cats Lions Horses Animal Average Heart Rate (beats per minute) Average Life Span (years)

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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Heart rates and life spans of most mammals can be modeled using inverse variation. The bar graph shows the average heart rate and the average life span of five mammals.

a. A mammal’s average life span, L, in years, varies inversely as its average heart rate, R, in beats per minute. Use the data shown for horses to write the equation that models this relationship.
b. Is the inverse variation equation in part (a) an exact model or an approximate model for the data shown for lions?
c. Elephants have an average heart rate of 27 beats per minute. Determine their average life span.

Heart Rate and Life Span
Average Heart Rate
Average Life Span
200
190
40
175
35
158
30
150
30
126
25
125
25
100
20
15
76
75
12
63
15
10
50
10
25
Squirrels Rabbits
Cats
Lions Horses
Animal
Average Heart Rate
(beats per minute)
Average Life Span (years)
Transcribed Image Text:Heart Rate and Life Span Average Heart Rate Average Life Span 200 190 40 175 35 158 30 150 30 126 25 125 25 100 20 15 76 75 12 63 15 10 50 10 25 Squirrels Rabbits Cats Lions Horses Animal Average Heart Rate (beats per minute) Average Life Span (years)
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