4-3 LOAN CALCULATIONS AND REGRESSION

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4-3 LOAN CALCULATIONS AND REGRESSION Banking 4/23/2017 4-3 LOAN CALCULATIONS AND REGRESSION OBJECTIVES Calculate the present value of a single deposit investment. Calculate the present value of a periodic deposit investment. Chapter 1

Key Terms monthly payment calculator natural logarithm cubic function cubic regression equation

How can you calculate and model loan computations? How does a loan payment work? Which of the following change monthly and which remain the same each month? Monthly payments Monthly contribution to principal Monthly contribution to finance charges

Determine the total interest owed on a 5-year $10,000 loan at 6% APR. Example 1 Determine the total interest owed on a 5-year $10,000 loan at 6% APR.

CHECK YOUR UNDERSTANDING Hannah is taking out a 4.3% loan to purchase an $18,000 car. The length of the loan is 8 years. How much will she pay in interest?

Example 2 Claude wants to borrow $25,000 to purchase a car. After looking at his monthly budget, he realizes that all he can afford to pay per month is $300. The bank is offering a 5.9% loan. What would need to be the length of his loan be so that he can stay within his budget?

CHECK YOUR UNDERSTANDING In Example 2, what impact would an increase in the monthly payment of $50 have on the length of the loan?

EXAMPLE 3 This lesson opened with a discussion about a $100,000 loan with an APR of 7.5% taken out in January 2010 for a period of 15 years. Examine the table of decreasing loan balances over the 15-year period. Use regression to determine a curve of best fit for this data.

CHECK YOUR UNDERSTANDING Use the linear, quadratic, and cubic regression equations determined in Example 3 to compare the computed loan balances when x = 2 with the loan balance amount given in the chart for 2011.