Algebra Understanding Direct Variation Quiz

8 Questions | Total Attempts: 571

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Algebra Understanding Direct Variation Quiz

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Questions and Answers
  • 1. 
    Which of the following is NOT true about direct variation?
    • A. 

      Direct Variation is y = k/x

    • B. 

      Direct variation is y = kx

    • C. 

      Direct variation always passes through the origin (0,0)

    • D. 

      Direct variation has a constant of proportionality, k.

  • 2. 
    Y is directly proportional to x. If y = 16 when x = 4, write the formula to represent this relation of y and x.
    • A. 

      Y = 4x

    • B. 

      Y = (1/4)x

    • C. 

      Y = 12x

    • D. 

      Y = 20x

  • 3. 
    Assume y varies directly as x.  If y = 20 and x  = 4, find y when x = 9.
    • A. 

      Y = 9/5

    • B. 

      Y = 180

    • C. 

      Y = 14

    • D. 

      Y = 45

  • 4. 
    If y = 15 when x = 2, then y = 10 when x = 8.  True or False?
    • A. 

      True

    • B. 

      False

  • 5. 
    The amount of money raised at a charity fundraiser is directly proportional to the number of attendees. The amount of money raised for 5 attendees was $100. How much money will be raised for 60 attendees?
    • A. 

      $80

    • B. 

      $6,000

    • C. 

      $1,200

    • D. 

      $12,000

  • 6. 
    Katherine sells 75% of the cupcakes that she sells at her bakery.  Which term would correctly describe which part of the direct variation equation 75% would represent?
    • A. 

      Y variable

    • B. 

      X variable

    • C. 

      Constant of variation

    • D. 

      Product

  • 7. 
    Which of the following is the correct equation for the following if y varies directly as x? x =3 and y = 4.
    • A. 

      Y = (3/4)x

    • B. 

      Y = (4/3)x

    • C. 

      Y = 1x

    • D. 

      Y = -1x

  • 8. 
    Any questions about the video?
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