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April 20, 2014

April 20, 2014

Posted by **karon** on Thursday, December 15, 2011 at 9:04pm.

- algebra -
**Willie**, Thursday, December 15, 2011 at 11:05pmy varies inversely with x means that y = 1/x times some constant k.

So, y = k/x is the general form of an equation of variation where y varies inversely as x.

But now you also know that for a specific value x = 6, y = 1. Plug those values in to your equation to get something that only has k in it.

1 = k/6.

Solve that for k.

Now you can write your equation

y = k/x using the number you found for k. The number k is probably what is being called the "variation constant" and the expression y = k/x is the equation of inverse variation.

It's funny that something can be called a "variation constant" because those two words seem to mean opposites!

- algebra -
**Ashley**, Wednesday, February 8, 2012 at 5:01pmfind the variation constant and an equation of variation where y varies directly as x and y= 24 when x=6

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