Answer
$y$ does not vary directly with $x$.
Work Step by Step
If $y$ varies directly with $x$, then the equation would take the form $y = kx$, where $k$ is the constant of variation.
To see if this equation is a direct variation equation, we would need to rewrite the equation such that $y$ is on the left-hand side.
Add $x$ to each side of the equation:
$$y = x - 4$$
We can see that the equation does not take the form $y= kx$; therefore, $y$ does not vary directly with $x$.
