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1.1 OT1: Mathematical argument, language and proof

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Question 1
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The function f f\,f is defined by

f(x)=x2−10x+30,x∈R f(x) = x^2 - 10x + 30, \quad x \in \mathbb{R} f(x)=x2−10x+30,x∈R
a.

Find the range of f(x)f(x)f(x)

[3]
b.

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

[1]
Markscheme

1.1 OT1: Mathematical argument, language and proof Questions

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

7 exam-style questions on AQA A Level Maths 1.1 OT1: Mathematical argument, language and proof, 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. Each one has a worked solution and a mark scheme showing where the marks go.

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