3.6 – Mathematics of Finance. By the end of today, you will be able to:. Find the value of an investment in which interest is compounded annually, a specified amount of times per year, and continuously Compute and Compare Annual Percentage Yields
Find the amount A accumulated after investing a principal P for t years at an interest rate rcompounded annually.
P = $12,000, r = 7.5%, t = 7
You Try! for t years at an interest rate Find the amount A accumulated after investing $1500 for 5 years at an interest rate of 7% compounded quarterly.
You Try! for t years at an interest rate Find the amount A accumulated after investing a principal amount of $1250 for 6 years at interest rate of 5.4% compounded continuously
Which investment is more attractive, one that pays for t years at an interest rate 8.75% compounded quarterly or another that pays 8.7% compounded monthly?
Comparing annual percentage yields (APYs)
Ordinary Annuities for t years at an interest rate : A sequence of periodic payments made at the end of each period at the same time the interest is posted in the account.
Future Value of an Annuity
An IRA Account for t years at an interest rate : Amy contributes $50 per month into the Lincoln National Bond fund that earns 7.26% annual interest. What is the value of Amy’s investment after 25 years?
You Try! for t years at an interest rate Find the present value (PV) of a loan with an annual interest rate of 4.7%, and periodic payments of $815.37 for a term of 5 years, with payments made and interest charged 12 times per year.
The annual interest rate charged on consumer loans
Ex) What is Kim’s monthly payment for a 4-year $9000 car loan with an APR of 7.95% from Century Bank?
2, 8, 10, 16, 18, 22, 46, 48