Mathematics 0580 · IGCSE · Proportion

Proportion — practice question

The quantity y is inversely proportional to $x^3$. At $x = 2$, the value of $y$ is $0.5$.
(main)[2]

Find an expression for 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: “$4x^{-3}$” …

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