Select the function with an average rate of change of 4 over the interval [-1, 3].

The Graph Option (Should be Option B)

Here's some things we know:

Why are these important?

They help us isolate our options! For starters, the equation f(x)=2x+4 is linear, which is somewhat crucial- but  we know that this can't be right is because it's slope is 2 instead of 4. This gets rid of this option.

Now, we've got a good 50% of getting this question right. With the table, we need to look at the points. Because the value -1, 3 is not there, this means that there is no potential for the interval to be checked.

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.