Part B(i) - Find Average Rate of Change
Average Rate of Change = Slope
You must show work. The work should look like division of two subtraction problems.
You must write your answer as a decimal. You need at least three numbers after the decimal point unless those numbers are zero (i.e. you can write 4.5 instead of 4.500)
If the units are "thousands" or "millions" or anything like that, you should treat the units the same way you did in part a.