The formula for slope is the change in y over the change in x
m=slope
m=4-2/5-7
m=2/-2
m=-1
it has a slope of -1
Even though the money is required 2 years from now, the first deposit is made only a year from now, therefore in the bank for only one year.
The second deposit will be in the bank the same day it will be taken out, so no interest whatsoever.
Thus future value
= 8200(1.062)+8200
=$16908.40
will be available assuming compounding annually.
The answer is 3/4. Hope I was able to help
