Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

A curve has derivative $\frac{dy}{dx} = 12\left(\frac{1}{2}x - 1\right)^{-4}$. The curve is known to pass through $P(6, 4)$.
(a)[2]

Find the equation of the tangent at $P$ to the curve.

(b)[4]

Find the equation of the curve.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: Put $x=6$ into $\frac{dy}{dx}$ and take the gradient to be $\frac{3}{4}$.

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