Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.3 - More on Functions and Their Graphs - Exercise Set - Page 199: 103

Answer

The domain is\[\left( 25,75 \right)\]and the range is\[\left( 34,38 \right)\].

Work Step by Step

From the given graph, we can observe that at the age of 25, the percent body fat in women is 34. It then starts increasing until it reaches the value of 38 at the age of 55. Thus, from the given graph we can interpret that the percent body fat in women is increasing on the interval $\left( 25,55 \right)$. At 55 years of age, the percent body fat in women is 38. It then starts decreasing until it reaches the value of 36 at the age of 75. So, the domain and the range for the graph of the function for women is $\left( 25,75 \right)$ and $\left( 34,38 \right)$.
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