The figure shows a graph that compares the future values, at 9% compounded monthly, of an annuity

Question:

The figure shows a graph that compares the future values, at 9% compounded monthly, of an of $50 per month and one of $60 per month.
(a) Decide which graph corresponds to which Use the graph to estimate (to the nearest 10 months) how long it will be before the larger is $10,000 more than the smaller one.

2$ 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 time 50 150 250 350 Months %24 Dollars

Annuity
An annuity is a series of equal payment made at equal intervals during a period of time. In other words annuity is a contract between insurer and insurance company in which insurer make a lump-sum payment or a series of payment and, in return,...