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3.2.3 Algebra and Functions (A-level only)

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Question 8
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The function h h\,h is defined by

h(x)=x2−2x+8,x∈R h(x) = x^2 - 2x + 8, \quad x \in \mathbb{R} h(x)=x2−2x+8,x∈R
a.

Find the range of h(x)h(x)h(x)

[3]
b.

Explain why the function h(x)h(x)h(x) does not have an inverse

[1]
Markscheme

3.2.3 Algebra and Functions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.2.3 Algebra and Functions (A-level only)

57 exam-style questions on WJEC A Level Maths 3.2.3 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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