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1.4 Graphs

1.4 Graphs

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Question 4

Prove that, for all real values of xxx, x2+4x+12>x+3x^2 + 4x + 12 > x + 3x2+4x+12>x+3

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Markscheme

1.4 Graphs Questions

  1. A Level
  2. /Maths
  3. /1.4 Graphs

33 exam-style questions on OCR (MEI) A Level Maths 1.4 Graphs, covering 1.4.1 Graphs of functions, 1.4.2 Intersection points with axes, 1.4.3 Completing the square for a quadratic curve, 1.4.4 Sketch graphs of simple functions, 1.4.5 Stationary points when curve sketching, 1.4.6 Graphs of reciprocal-type functions, 1.4.7 Single transformations of graphs, 1.4.8 Combined transformations of graphs (A-level only), and 1.4.9 Stationary points of inflection (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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