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Exponential Growth + Decay Functions

Quiz by Shenna Sutton

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11 questions
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  • Q1
    #2: Annual sales for a company are $125,000 and are increasing at a rate of 8% per year. Use an exponential function to find the annual sales after 5 years. Round to the nearest cent.
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    30s
  • Q2
    #3: The population of the city of Miami is approximately 463,300 and is increasing at a rate of 3% each year. Use an exponential function to find the population of the city after 7 years. Round to the nearest whole number.
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    30s
  • Q3
    #4: The original value of an investment is $4500, and the value increases by 12% each year. Write and use an exponential growth function to find the value of the investment after 20 years. Round to the nearest cent.
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    30s
  • Q4
    #5: Ella's Instagram has 62,000 followers and is increasing at a rate of 15% each month. Use an exponential function to find the number of followers after 6 months. Round to the nearest whole number.
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    30s
  • Q5
    #6: In 2018, the number of students at The Villages High School was 975 and is increasing at a rate of 2.5% per year. Write and use an exponential growth function to project the populating in 2025. Round to the nearest whole number.
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    30s
  • Q6
    #7: The cost of in-state tuition at the University of Florida is $6,380 and is increasing at a rate of 3.1% per year. Write and use an exponential function to find the tuition cost after 8 years. Round your answer to the nearest whole dollar.
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    30s
  • Q7
    #8: The value of Melissa's Jeep is $28,000 and is depreciating at a rate of 14% per year. Use an exponential function to find the value of the Jeep after 6 years. Round to the nearest cent.
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    30s
  • Q8
    #9: Bobby's investment of $225,000 loses value at a rate of 3% per year. Use an exponential function to find the value of the investment after 10 years. Round to the nearest whole dollar.
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    30s
  • Q9
    #10: Due to crime rates in a certain city, home values began to decrease by 4% each year. If a home was purchased in 2015 for $315,000, write and use an exponential function to determine the amount the house will be worth in 2020. Round to the nearest whole dollar.
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    30s
  • Q10
    #11: The population of a city is 51,000 and is decreasing at a rate of 1.75% per year. Use an exponential function to find the expected population in 5 years. Round to the nearest whole number.
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    30s
  • Q11
    #12: The population of a certain animal species decreases at a rate of 2.5%. If there are 400 of this animal in the wild, using an exponential function, predict approximately how many there will be in 4 years. Round to the nearest whole number.
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