Mathematics 9709 · AS & A Level · Integration

Integration — practice question

The diagram depicts a section of the curve $y = 3\sqrt{(4x + 1)} - 2x$. The curve meets the $y$-axis at $A$, and the curve's stationary point is $M$.
(i)[5]

Derive expressions for $\frac{dy}{dx}$ and $\int y\,dx$.

(ii)[3]

Determine the coordinates of $M$.

(iii)[4]

Show all necessary working to find the area of the shaded region.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: Accurate differentiation with product and chain rules

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