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” …