Question

What is the average rate of change between March 15 and June 15?

A. 2.6 degrees Fahrenheit
B. 3.9 degrees Fahrenheit
C. 5.2 degrees Fahrenheit
D. 7.8 degrees Fahrenheit

Answer 1

from March 15 to April 15, the change 6.3°
from April 15 to May 15, the change is 5°
from May 15 to June 15, the change is 4.3°

to find the average rate of change, we have to add the changes together, and then divide then by 3

6.3+5=11.3
11.3+4.3=15.6
15.6/3= 5.2

So your answer is C

Answer 2

The question is essentially asking how drastically the temperature changes between each from between March and June. From March to April, the temp changes 6.3 degrees (73.1-66.8) Then from April to May, it changes 5 degrees (78.1-73.1). And finally, from May to June the temperature changes 4.3 degrees (82.4-78.1).

Now, let's take all the temp changes and add them up:
6.3+5+4.3 = 15.6

Now divide by 3 (The number of temperatures we added)

15.6/3 = 5.2

So 5.2 (c) is the average change in temperature between March and June.

Hope this Helps!