What is the average rate of change of temperature with respect to time over the evening hours from 6 PM to 10 PM? Interpret this value in a complete sentence.

Assuming that the values are:

34 degrees = 6pm

30 degrees = 8pm

28 degrees = 10pm

With respect of the temperature, the formula you should first use is y/x

where in it is 34-38/6-10 = - 6 degress Fahrenheit/4 hours = - 1.5 Fahrenheit, meaning that the temperature decreases every hour.