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semperfilove Group Title

y varies directly as x. When y = 15, x = 4. Find the constant of variation and use it to determine the value for y when x = 6.

  • one year ago
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  1. Hope_nicole Group Title
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    set it up as a proportion.

    • one year ago
  2. semperfilove Group Title
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    Then, wouldn't you do cross mulitply & divide ?

    • one year ago
  3. Hope_nicole Group Title
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    |dw:1364319403425:dw|

    • one year ago
  4. SerikMB Group Title
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    y=k*x

    • one year ago
  5. SerikMB Group Title
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    k is a constant that vary

    • one year ago
  6. SerikMB Group Title
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    15=k4, k=4/15, then use it in the y=4/15*6

    • one year ago
  7. Softballgirl372015 Group Title
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    k=15/4

    • one year ago
  8. Softballgirl372015 Group Title
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    then you do 15/4 * 6

    • one year ago
  9. SerikMB Group Title
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    yep, sorry wrong calculation

    • one year ago
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