Mathematics 9709 · AS & A Level · Quadratics

Quadratics — practice question

(main)[4]

Find the values of $m$ for which the line $y = mx + 1$ and the curve $y = 3x^2 + 2x + 4$ meet at two distinct points.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Equate $3x^2+2x+4=mx+1 \Rightarrow 3x^2+x(2-m)+3=0$” …

Full mark scheme, point by point
Step-by-step worked solution
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