Practice!

Sample Problem

Sports analysts have found a relationship in long distance runners’ times for the mile and their age. It seems that their times generally decrease before the age of 25, but begin to increase each year after that. Which of the following tables below could represent the mile time vs. age of a long distance runner who accurately follows this pattern?

Age

23

24

25

26

27

Time

4:20

4:24

4:22

4:19

4:22

 

Age

23

24

25

26

27

Time

4:23

4:21

4:19

4:21

4:25

 

Age

23

24

25

26

27

Time

4:18

4:19

4:24

4:19

4:18

 

Age

23

24

25

26

27

Time

4:24

4:18

4:25

4:28

4:20

Solution

(B) is the only table that features a decrease in time up to age 25 and then an increase after.