The amount f(x), in dollars, in account A after x years is represented by the function below: f(x) = 1,264(1.09)
Part A: Is the amount of money in account
increasing or decreasing and by what percentage per year? Justify your answer. (5 points)
Part B: The table below shows the amount go. In dollars, of money in account B after r years:
r (number of years)
1
2
3
4
go (amount in dollars) 1,375 1,512.50 1.663.75 1,830.13