A high school counselor conducted a study over 16 consecutive quarters to determine the number of
students with part-time jobs. Each student in the
2014 graduating class is surveyed once per quarter
for all four years of high school. The graph below
shows the data for each quarter the survey was
conducted.
Number of Students with Part-Time Jobs
Number of students
70
60
50
40
30
20
10
0
0

12 14 16
2.
4
6 8 10
Quarter
During which of the following periods is the increase
in the number of students with part-time jobs
largest?
A) Quarters 4 through 6
B) Quarters 7 through 10
C) Quarters 11 through 14
D) Quarters 13 through 16