36 One spring day, Elroy noted the time of day and the temperature, in degrees Fahrenheit His findings are stated below. At 6 a.m., the temperature was 50F. For the next 4 hours, the temperature rose 3 per hour. The next 6 hours, it rose 2 per hour. The temperature then stayed steady until 6 p.m. For the next 2 hours, the temperature dropped 1 per hour. The temperature then dropped steadily until the temperature was 56F at midnight. On the set of axes below, graph Elroy's data. 80- Temperature (F) 70- 60- 50- 6 am 12 6 pm 12 Midnight Noon State the entire time interval for which the temperature was increasing. Determine the average rate of change, in degrees per hour, from 6:00 p.m. to midnight