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1.3 Functions

1.3 Functions

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Question 11
f(x)=2x+5x−3x≥5 f(x) = \frac{2x+5}{x-3} \quad x \geq 5 f(x)=x−32x+5​x≥5
a.

Find ff(5)ff(5)ff(5)

[2]
b.

State the range of fff.

[1]
c.

Find f−1(x)f^{-1}(x)f−1(x) and state its domain

[3]
Markscheme

1.3 Functions Questions

  1. A Level
  2. /Maths
  3. /1.3 Functions

181 exam-style questions on OCR (MEI) A Level Maths 1.3 Functions, covering 1.3.1 Operations on polynomials, 1.3.2 Factor theorem, 1.3.3 Definition of a function (A-level only), 1.3.4 Composite functions (A-level only), 1.3.5 Inverse functions and their graphs (A-level only), 1.3.6 The modulus function (A-level only), 1.3.7 Inequalities with a modulus sign (A-level only), and 1.3.8 Functions in modelling (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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