Question

Alexandra is scuba diving. A diving computer automatically records her depth every five minutes. The depth readings from her first 20 minutes of diving are shown in the table below.

Elapsed time (in minutes)

Depth (in meters)
0

0
5

–12.45
10

–9.7
15

–22.98
20

–6.6

Answer 1

16.38

Explanation:

Answer 2

16.38 meters represents the greatest amount of change in her depth over a single 5-minute period

Explanation:

From time = 0 to time = 5 the amount of change in her depth was -12.45 - 0 = -12.45 meters

From time = 5 to time = 10 the amount of change in her depth was -9.7 - (-12.45) = -2.75 meters

From time = 10 to time = 15 the amount of change in her depth was -22.98 - (-9.7) = -13.28 meters

From time = 15 to time = 20 the amount of change in her depth was -6.6 - (-22.98) = 16.38 meters