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Quadratics

Quadratics

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Question 31
a.

Express x2+6x+kx^2 + 6x + kx2+6x+k in the form a(x+b)2+ca(x + b)^2 + ca(x+b)2+c

[3]
b.

Find the values of k k\,k for which the curve y=x2+6x+ky = x^2 + 6x + ky=x2+6x+k does not intersect the line y=2y = 2y=2

[3]
Markscheme

Quadratics Questions

  1. A Level
  2. /Maths
  3. /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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