(a)[2]
At $x=2$, $y=9$. Determine the value of $y$ when $x=3$.
(b)[1]
If $x=n$ gives $y=p$, state an expression for $y$, in terms of $p$, when $x=2n$.
Mathematics 4024 · O Level · Proportion
Proportion — practice question
The value of $y$ is inversely proportional to the square of $x$.