Mathematics 4024 · O Level · Ratio and proportion

Ratio and proportion — practice question

$y$ varies inversely with $(x+1)^2$.
(main)[2]

Since $y=2$ when $x=3$, determine $y$ when $x=9$.

Worked solution & mark scheme

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

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