Final answer:
The diver's average change in position per minute relative to where she started is 12 feet per minute.
Step-by-step explanation:
The question pertains to the concept of average rate of change in the context of a scuba diver's movement underwater. To find the average change in position per minute relative to where she started, we divide the total change in position by the total time taken. The diver descends 48 feet in 4 minutes, so the calculation would be:
- Calculate the total change in position: The diver descends 48 feet.
- Calculate the total time: The total time is 4 minutes.
- Determine the average change per minute: Divide the total change in position by the total time to get the average change in position per minute. This will be 48 feet ÷ 4 minutes = 12 feet per minute.
Thus, the diver's average change in position per minute relative to where she started is 12 feet per minute down.