Answer:
y=6x is a direct variation.
Step-by-step explanation:
In direct variation the relation between two variable is direct. It means y varies directly as x.


Where, k is constant of proportionality.
In inverse variation the relation between two variable is inversely proportional. It means y varies inversely as x.


Where, k is constant of proportionality.
The given function is

It is direct variation because y varies directly as x and constant of proportionality is 6.
Therefore, y=6x is a direct variation.