Mathematics 0580 · IGCSE · Ratio and proportion

Ratio and proportion — practice question

$y$ varies inversely with the square of $(x + 3)$. If $x = 5$, then $y = 0.375$.
(main)[2]

Express $y$ in terms of $x$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Therefore the final answer is $y=\frac{24}{(x+3)^2}$” …

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