Mathematics 0580 · IGCSE · Proportion

Proportion — practice question

The variable $z$ is inversely proportional to the square of $(y - 2)$. For $y = 5$, the value of $z$ is $9$.
(main)[2]

Find the expression for $z$ in terms of $y$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate algebraic expression” …

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