Mathematics 9709 · AS & A Level · Quadratics

Quadratics — practice question

(main)[3]

The line is given by $y = 2x - 7$ and the curve is given by $y = x^2 - 4x + c$, with $c$ a constant. Find the set of values of $c$ for which the line does not intersect the curve.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: Put all terms on one side to obtain $x^2-6x+c+7=0$

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