Question

with aging, body fat increases and muscle mass declines. the graph to the right shows the percent body fat in a group of adult women and men as they age from 25 to 75 years. age is represented along the x - axis, and percent body fat is represented along the y - axis. state the intervals on which the graph giving the percent body fat in men is increasing and decreasing.
on what interval is the graph increasing?
a. (25,75)
b. (20,26)
c. (25,45)
d. (45,75)

Explanation:

Step1: Understand the concept of increasing graph

A graph is increasing when as \(x\) (age in this case) increases, \(y\) (percent body - fat) also increases.

Step2: Analyze the men's graph

Looking at the men's graph (blue line), from \(x = 25\) to \(x=45\), as the age ( \(x\) - value) increases, the percent body - fat ( \(y\) - value) increases.

Answer:

C. \((25,45)\)