HOME MORTGAGE The total interest u paid on a home mortgage of P dollars at interest rate r for t years is rt u = P 1 12t 1 - 1 + r/12, Consider a $120,000 home mortgage at 7-%. (a) Use a graphing utility to graph the total interest function. (b) Approximate the length of the mortgage for which the total interest paid is the same as the size of the mortgage. Is it possible that some people are paying twice as much in interest charges as the size of the mortgage?

Essentials Of Investments
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ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
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Chapter1: Investments: Background And Issues
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HOME MORTGAGE The total interest u paid on a
home mortgage of P dollars at interest rate r for t years is
rt
u = P|
1
12t
1
1
1 + r/12,
Consider a $120,000 home mortgage at 75%.
(a) Use a graphing utility to graph the total interest function.
(b) Approximate the length of the mortgage for which
the total interest paid is the same as the size of
the mortgage. Is it possible that some people are
paying twice as much in interest charges as the size
of the mortgage?
Transcribed Image Text:HOME MORTGAGE The total interest u paid on a home mortgage of P dollars at interest rate r for t years is rt u = P| 1 12t 1 1 1 + r/12, Consider a $120,000 home mortgage at 75%. (a) Use a graphing utility to graph the total interest function. (b) Approximate the length of the mortgage for which the total interest paid is the same as the size of the mortgage. Is it possible that some people are paying twice as much in interest charges as the size of the mortgage?
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