At 10A.M. there are 32 people in line waiting to ride a rollercoaster. Throughout the course of the day, the number of people in line changes at a rate
modeled by the differentiable function R, where R(t) is measured in people per hour and t is measured
in hours since 10 A.M. Which of the following
is
the best interpretation of R(t)dt?
Elimination Tool
Select one answer
A
The total number of people in line at 3 P.M.
B
The rate at which the number of people in line is changing at 3 P.M.
C
The number of people that were in line at some point between 10 A.M. and 3 P.M.
D
The change in the number of people in line between 10 AM. and 3 P.M.