Question

Question #1efbd

Answer 1

Direct variation

Explanation:

The constant part of this is the 0. As this has no effect on the behaviour of the equation it can be disregarded.

Consequently you only need to consider `y=13x`

This is a direct variation.

If it was a constant you would always have the same answer (`y` value) no matter what value you assign to `x`. Clearly this is not the case.