# If y varies inversely as x, how do you find the constant of variation if #y=36# when #x=9#?

##### 1 Answer

Feb 5, 2015

In inverse proportions the rule is that

In your case

Let's do a few examples:

We *double* *halved* :

We *divide* *times* 3

That's really all there is to it.

So for any

Here's a graph (you'd probably only use the positive side)

graph{324/x [-213.8, 213.7, -106.8, 107]}