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$y$ is inversely proportional to the square of $x$. Since $y=10$ when $x=3$, determine $y$ when $x=\frac{1}{2}$.
Mathematics 4024 · O Level · Ratio and proportion
Ratio and proportion — practice question
Worked solution & mark scheme
This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply $y=\frac{k}{x^2}$ or use the inverse-square relationship” …
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