# What is Direct Variation?

Oct 29, 2014

When you have a direct variation, we say that as your variable changes, the resulting value changes in the same and proportional manner.

A direct variation between $y$ and $x$ is typically denoted by

$y = k x$

where $k \in \mathbb{R}$

This means that as $x$ goes larger, $y$ also tends to get larger.
The opposite is also true. As $x$ goes smaller, $y$ tend to get smaller.