Mathematics 0580 · IGCSE · Proportion

Proportion — practice question

y varies inversely with $(x+2)^2$. w varies directly with x. If y = 8, then x = 3.5. If w = 15, then x = 90.

(main)[4]

Find y as a function of w.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “B1 awarded for $w = x/6$ oe” …