Answer :
The average rate of change in the value of Starbucks stock from 11 AM to 4 PM was $0.60 per hour.
The student is asking how to calculate the rate of change in the value of Starbucks stock per hour. We begin by finding the difference in price from the initial time to the final time, and then divide that difference by the number of hours elapsed. The initial stock value at 11 AM was $41, and by 4 PM it had risen to $44.
This is an increase of $44 - $41 = $3. The time elapsed from 11 AM to 4 PM is 5 hours. Therefore, the rate of change is $3 divided by 5 hours, which equals $0.60 per hour. This represents the average rate at which the value of Starbucks stock was changing during that period.
