A.4.7.2 Drop Some More

The table and graphs show a more complete picture of the temperature changes on the same winter day. The function gives the temperature in degrees Fahrenheit, hours since noon. 1. Find the average rate of change for the following intervals (calculate the change using the endpoints). Explain or show your reasoning. a. between noon and 1 p.m. b. between noon and 4 p.m. c. between noon and midnight

2. Remember Mai and Tyler’s disagreement? Use average rate of change to show which time period—4 p.m. to 6 p.m. or 6 p.m. to 10 p.m.—experienced a faster temperature drop.