Part B
The work for average rate of change should look like a subtraction problem divided by a subtraction problem
Explaining why estimates based on average rate of change over/under estimate values of a model should include:
Quick sketch with t-values and graphs labelled
Talk about concavity of the model
Refer to the estimates based on AROC as outputs of a secant line
𝑡-values of secant line
𝑡-values the problem is about
Which graph is on top