Change the length of the interval on the “month” axis to see how it affects the average rate of change of the temperature. The questions below are all asking for basically the same thing, but they are written in different ways so you can see how the language relates to the notation.

1. What is the average rate of change on the interval between May and August?
   $\frac{\Delta T}{\Delta m} \approx$
2. What is $\frac{\Delta T}{\Delta m}$ on the interval between September and December?
   $\frac{\Delta T}{\Delta m} \approx$
3. Find $\frac{\Delta T}{\Delta m}$ for $2 \leq m \leq 12$
   $\frac{\Delta T}{\Delta m} \approx$
4. What month begins a $-1$ degree per month average rate of temperature change that ends in December?
   The month is (use a number for the month)
5. Finish the next sentence using the month number you just found to write the entire interval.
   $\frac{\Delta T}{\Delta m} \approx -1$ on the interval
6. What are the units of average rate of change in this example?
   ? month time degrees Fahrenheit degrees Fahrenheit per month