Mathematics 0580 · IGCSE · Ratio and proportion

Ratio and proportion — practice question

$y$ varies inversely with $x^2$. When $x = 4$, $y = 2$.
(main)[3]

Find the value of $y$ when $x = \frac{1}{2}$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The relation is $y=\frac{k}{x^2}$.” …

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