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Page 1: 1. What factors might contribute to a car losing its value?edweb.tusd1.org/jdumes/Documents/Financial Algebra/5-6... · 2015-01-28 · Lesson 56 Historical and Exponential Depreciation.notebook

Lesson 5­6 Historical and Exponential Depreciation.notebook

1

January 28, 2015

Bellwork 1-28-15

1. What factors might contribute to a car losing its value?

I once bought an old car back after I sold it because I missed it so much and I had forgotten that it never ran... I just wanted it back.  I could only remember what was good about it.Connie Chung, Television News Commentator

Page 2: 1. What factors might contribute to a car losing its value?edweb.tusd1.org/jdumes/Documents/Financial Algebra/5-6... · 2015-01-28 · Lesson 56 Historical and Exponential Depreciation.notebook

Lesson 5­6 Historical and Exponential Depreciation.notebook

2

January 28, 2015

EXAMPLE 5A car exponentially depreciates at a rate of 6% per year. Beth purchased a 5‐year‐old car for $18,000. What was the original price of the car when it was new?   

Page 3: 1. What factors might contribute to a car losing its value?edweb.tusd1.org/jdumes/Documents/Financial Algebra/5-6... · 2015-01-28 · Lesson 56 Historical and Exponential Depreciation.notebook

Lesson 5­6 Historical and Exponential Depreciation.notebook

3

January 28, 2015

A car depreciates exponentially at a rate of 5% per year. If the car is worth $30,000 after 9 months, what was the original price of the car?  

CHECK YOUR UNDERSTANDING

Page 4: 1. What factors might contribute to a car losing its value?edweb.tusd1.org/jdumes/Documents/Financial Algebra/5-6... · 2015-01-28 · Lesson 56 Historical and Exponential Depreciation.notebook

Lesson 5­6 Historical and Exponential Depreciation.notebook

4

January 28, 2015

EXAMPLE 6Leah and Josh bought a used car valued at $20,000. When this car was new, it sold for $24,000. If the car depreciates exponentially at a rate of 8% per year, approximately how old is the car? 

Page 5: 1. What factors might contribute to a car losing its value?edweb.tusd1.org/jdumes/Documents/Financial Algebra/5-6... · 2015-01-28 · Lesson 56 Historical and Exponential Depreciation.notebook

Lesson 5­6 Historical and Exponential Depreciation.notebook

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January 28, 2015

Homework: Page 257, #'s 11-12, 14-18