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1.1 OT1: Mathematical argument, language and proof

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Question 3
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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]

1.1 OT1: Mathematical argument, language and proof Questions

  1. A Level
  2. /Maths
  3. /1.1 OT1: Mathematical argument, language and proof

Practise AQA A Level Maths 1.1 OT1: Mathematical argument, language and proof with exam-style questions for A Level Maths. 8 questions covering 1.1.1 Constructing mathematical arguments, 1.1.2 Mathematical language and syntax, 1.1.3 Set theory language and symbols, 1.1.4 Definition, domain and range of functions, and 1.1.5 Comprehending and critiquing arguments, matched to the AQA A Level Maths (7357) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank