15) Average rate of 15) change is very important. The following data represents the temperature T (Fahrenheit) in a certain city x hours after midnight over the course of one day. Hours after Midnight, x | 3 6 9 12 15 18 21 24 Temperature (in F), T 60.4 59.3 62.2 65.7 65.6 70.4 69.4 61.9 CH a) Find the average rate of change in temperature from 6 AM to 12 noon. Round to two rob decimal places. Wh e f b) Find the average rate of change in temperature from 6 PM to 9 PM. Round to two E decimal places. c) Decide on a function of best fit to these data (linear, quadratic, or cubic) and use this function to predict the temperature at 4 PM. Round to one decimal place