# Is y=x/10 a direct of inverse variation?

Oct 17, 2017

Direct

#### Explanation:

This equation is of the form $y = k x$, where $k = \frac{1}{10}$. Therefore, this is an example of direct variation.

Oct 18, 2017

$y = \frac{x}{10}$ is a direct variation, because everything you do to $y$ will result in a similar change in $x$.

#### Explanation:

As you know, it is often necessary to multiply or divide variables to add or subtract them.

For: $y = \frac{x}{10}$, if you multiply both sides by $3$, or triple the equation,

$3 y = 3 \left(\frac{x}{10}\right) = \frac{3 x}{10}$

You can try any multiple or division of the equation, and $x$ will always vary as does $y$, and vice-versa.

That is because $y$ and $x$ are in a direct variation.