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Quadratics

Quadratics

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Question 23

a.

Express $2x^2 + kx + 8$ in the form $a(x + b)^2 + c$

[3]

b.

Find the values of $k\,$ for which the curve $y = 2x^2 + kx + 8$ does not intersect the line $y = 2$

[3]

Markscheme

Quadratics Questions

A Level
Maths
Quadratics

211 exam-style questions on Edexcel A Level Maths Quadratics, covering 2.1 Solving Quadratics, 2.2 Completing the Square, 2.3 Sketching Quadratic Graphs, 2.4 The Discriminant, and 2.5 Modelling with Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.

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