Creating your Own Exponential Function

1
Creating your Own Exponential Function

• Here is a chart of the United States population
  by year
• Use regression tools on your calculator to create
  an exponential equation
• Determine the estimated population in 2020
• In what year can the U.S. population be expected
  to reach 500 million?

Year USA Population
1900 76 Million
1945 140 Million
1964 192 Million
1990 250 Million
2012 314 Million
2
Creating your Own Exponential Function

• Most cars/trucks depreciate as they get older
• Here is the depreciation chart for a 2013 Toyota
  Camry
• Use regression tools on your calculator to create
  an exponential equation
• Determine the estimated value of the car in 2020
• In what year will the car be only worth 5000?

Year Value of Vehicle
2013 23,000
2014 17, 500
2015 15,000
2016 13,500
2017 12,300