Mathematics 9709 · AS & A Level · Coordinate geometry

Coordinate geometry — practice question

The line $y = x + 5$ intersects the curve $2x^2 + 3y^2 = k$ at one only point, $P$.
(a)[4]

Determine the value of the constant $k$.

(b)[2]

Determine the coordinates of $P$.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: Try substituting for $y$ in the quadratic equation

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