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hugsandkisses

If y varies inversely as x, find the constant of variation if y = 14 when x = 8. A. 112 B. 2 C. 7/4 D. 7

  • 2 years ago
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  1. Mertsj
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    y=k/x

    • 2 years ago
  2. Mertsj
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    Plug in the given y and x values and find k which is the constant of variation.

    • 2 years ago
  3. hugsandkisses
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    I don't get it

    • 2 years ago
  4. Mertsj
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    Did you see the equation I wrote?

    • 2 years ago
  5. hugsandkisses
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    yes I did so it would be 14=k/8

    • 2 years ago
  6. Mertsj
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    \[y=\frac{k}{x}\]

    • 2 years ago
  7. Mertsj
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    Now solve that for k by multiplying both sides by 8

    • 2 years ago
  8. Mertsj
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    \[14(8)=\frac{k}{8}(8)\]

    • 2 years ago
  9. hugsandkisses
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    112=k/64?

    • 2 years ago
  10. Mertsj
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    |dw:1327613443151:dw|

    • 2 years ago
  11. hugsandkisses
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    Ohh, I see! Thanks for taking the time to explain that!

    • 2 years ago
  12. Mertsj
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    That's why you multiply both sides by 8...so that the 8"s on the right will cancel.

    • 2 years ago
  13. hugsandkisses
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    I see, Thanks so much!

    • 2 years ago
  14. Mertsj
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    yw

    • 2 years ago
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