Mathematics 4024 · O Level · Ratio and proportion

Ratio and proportion — practice question

$y$ varies directly as the square of $x$.

(main)[2]

If $y = 8$ when $x = 4$, determine $y$ for $x = 3$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate proportional work using $y=kx^2$” …