The temperature was 54° at 7:00am. At 3:00pm on the same day, the temperature was 82°. What is the rate of change in temperature during this time? Hint: When
finding the difference in time, don't forget that 3:00pm could also be written as
15:00 (to figure out the difference in hours).
a) 3.25° per hour
b) 3.1° per hour
c) 2.8° per hour
d) 3.5° per hour