Answer
$y$ does not vary directly with $x$.
Work Step by Step
To find the rule, we plug the $x$ values and $y$ values into the function $\frac{y}{x} = k$ to see if each set of $x$ and $y$ values has the same constant of variation ($k$). If they do, then $y$ varies directly with $x$:
$\dfrac{9}{3} = \dfrac{10}{4} \ne \dfrac{11}{5}$
The first ratio can be simplified to $3$, the second ratio simplifies to $\frac{5}{2}$, but the last ratio cannot be simplified; therefore, in this exercise, $\frac{y}{x}$ is not constant, so $y$ does not vary directly with $x$.
