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3.1 Algebra and functions (A-level only)

3.1 Algebra and functions (A-level only)

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Question 53
53%
a.

Sketch the graph of y=∣x∣+3y = |x| + 3y=∣x∣+3

[1]
b.

Explain why ∣x∣+3≥∣x+3∣|x| + 3 \geq |x+3|∣x∣+3≥∣x+3∣ for all real values of xxx.

[2]
Markscheme

3.1 Algebra and functions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.1 Algebra and functions (A-level only)

281 exam-style questions on CCEA A Level Maths 3.1 Algebra and functions (A-level only), covering 3.1.1 Algebra and functions (A-level only), 3.1.2 Algebra and functions (A-level only), 3.1.3 Algebra and functions (A-level only), 3.1.4 Algebra and functions (A-level only), 3.1.5 Algebra and functions (A-level only), 3.1.6 Algebra and functions (A-level only), 3.1.7 Algebra and functions (A-level only), 3.1.8 Algebra and functions (A-level only), 3.1.9 Algebra and functions (A-level only), and 3.1 Algebra and functions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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