# Given that y varies directly with x, and x = 15, y = 9, how do you write a direct variation equation that relates x and y?

##### 2 Answers

Jan 21, 2016

#### Explanation:

Here

which simplifies to

Jan 21, 2016

#### Explanation:

So

Where

Given that

Substitute given value of

Divide both sides by 15 giving:

So the direct variation equation is: