anonymous
  • anonymous
.Determine whether y varies directly with x. If so, find the constant of variation k and write the equation .please provide detail.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Hero
  • Hero
Is there any other given info? We won't be able help you from that information alone.
anonymous
  • anonymous
yes sorry
anonymous
  • anonymous
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anonymous
  • anonymous
this will probably help http://www.algebra.com/algebra/homework/Rational-functions/Rational-functions.faq.question.7326.html
Hero
  • Hero
The formula for direct variation is y = kx. In order for there to be a direct variation, both x and y must be increasing.
Hero
  • Hero
Or both decreasing.
Hero
  • Hero
To find k, insert one set of (x,y) values into the formula, then solve for k.
Hero
  • Hero
Or both decreasing.
Hero
  • Hero
The formula for direct variation is y = kx. In order for there to be a direct variation, both x and y must be increasing.
Hero
  • Hero
Is there any other given info? We won't be able help you from that information alone.
anonymous
  • anonymous
no that's all the info she gave
anonymous
  • anonymous
hi
anonymous
  • anonymous
Hi Venus XD
Hero
  • Hero
So...@DAshingNii , did you figure out the value of k yet?
Hero
  • Hero
Okay, that's weird
anonymous
  • anonymous
lol
Hero
  • Hero
@DAshingNii
Hero
  • Hero
There we go
Hero
  • Hero
Both x and y are increasing, so we can use the formula for direct variation y = kx to find the value of k by inserting one set of points. Let's insert the point (4, 6.4) into the formula: 6.4 = 4k To find k, simply divide both sides by 4: 6.4/4 = k k = ?

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