Question

Alexandra is scuba diving. Every 5 minutes an alarm goes off, and she checks her instruments and makes note of her depth. 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


Which best represents the greatest amount of change in her depth over a single 5-minute period?

Answer 1

The greatest amount of change in Alexandra's depth while scuba diving over a single 5-minute period would be the 15th to 20th-minute period, where she was able to go from -22.98M to -6.6M covering a 16.38M run.