Mathematics 4024 · O Level · Ratio and proportion

Ratio and proportion — practice question

$x$ varies directly as the square of $(y+1)$. If $y=2$, then $x=45$.

(main)[2]

Determine $x$ for $y=4$.

Worked solution & mark scheme

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