Exponential Decay And The Number

10 Questions | Total Attempts: 257

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Exponential Decay And The Number

Questions and Answers
  • 1. 
    Which of the following is an exponential function?
    • A. 

      Y=3^2

    • B. 

      Y=3x

    • C. 

      Y=(1/3)^x

  • 2. 
    Which of the following is an exponential decay function?
    • A. 

      Y=3^x

    • B. 

      Y=3^(-x)

  • 3. 
    3^0 = ?
    • A. 

      3

    • B. 

      0

    • C. 

      1

  • 4. 
    choose the equation that best describes the graph
    • A. 

      Y= - (0.25)^x

    • B. 

      Y=(0.25)^x

    • C. 

      Y = (0.5)^x

  • 5. 
    If you take 400 mg of ibuprofen and every hour 29% of ibuprofen is broken down in the body, how much ibuprofen is in your body system after 3 hours? Round to whole number (without decimals) without units.
  • 6. 
    Make a table for the equation y = (2/3)^x  -1x->0,1,2y->?,?,?
    • A. 

      Y->1,2,3

    • B. 

      Y->0,1,2

    • C. 

      Y->0,-.33,-.56

  • 7. 
    An exponential decay function becomes smaller and smaller until it reaches 0. true or false
  • 8. 
    An exponential decay function always has -x as its power. true or false
  • 9. 
    Nadia put $500 in her bank account with an interest compounded annually at the rate of 10%. This is an example of exponential growth. true or false
  • 10. 
    Nadia put $500 in her bank account with an interest compounded annually at the rate of 10%. The model for this problem is a)y = 500 (1.010)xORb) y = 500 (1.10)x
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