Caroline is sky diving. With her parachute open, she descends from 12,000 feet at a rate of 13 feet per second. What is the unit rate of change for this problem situation?
A.
−
12
,
000
B.
−
923
.
08
C.
−
13
D.
12,000
2 / 15
-13 ft/s
The unit rate of change for this problem situation is 13 feet per second. Therefore, the correct answer is C. -13.
To find the unit rate of change in this problem situation, we need to determine the change in the distance and the change in time.
The change in the distance is given as 13 feet per second. This means that for every second, Caroline descends 13 feet.
To find the unit rate of change, we divide the change in distance by the change in time. In this case, the change in distance is 13 feet and the change in time is 1 second.
Therefore, the unit rate of change is 13 feet per second.
So the answer is option C: -13.