Mathematics 0580 · IGCSE · Ratio and proportion

Ratio and proportion — practice question

$y$ varies directly with the square root of $x + 1$. $y = 10.5$ when $x = 8$.
(main)[3]

Determine $y$ for $x = 1.56$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Applies $y = k\sqrt{x+1}$” …

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