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Find the set of values of the constant $b$ for which the line intersects the curve.
Mathematics 9709 · AS & A Level · Coordinate geometry
Coordinate geometry — practice question
The line is given by the equation $y = x + 1$ and the curve is given by the equation $y = x^2 + bx + 5$.
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Rearrange to a single quadratic: $x^2+bx+5=x+1 \Rightarrow x^2+x(b-1)+4=0$” …
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