Mathematics 0580 · IGCSE · Ratio and proportion

Ratio and proportion — practice question

$y$ varies directly with $(x - 1)^2$. At $x = 5$, $y = 4$.
(main)[3]

Work out $y$ for $x = 7$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Right quadratic form” …

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