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2 marksRepresenting Relations

CSEC Mathematics · May/June 2018 · Paper 2 · Question 4(a)(iii)

The function f with domain, A = {1, 2, 3} is given by f(x) = (1/2)x - 3.

An ordered pair for the function is expressed in the form (a, b). Using your answers to (a) (i) and (a) (ii), or otherwise, list the ordered pairs for the function, f.

The mark scheme is shown once you've answered.

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Other parts of this question

  1. 4(a)(i)What is the value of f(1)?[1 mark]
  2. 4(a)(ii)Find the value of x for which f(x) = -2.[1 mark]
  3. 4(a)(iv)Explain why f(x) ≠ 5 for the function specified on page 13.[1 mark]
  4. 4(b)(i)a)3x - 1 < 11[1 mark]
  5. 4(b)(i)b)2 ≤ 3x - 1[1 mark]
  6. 4(b)(ii)Represent the solution to 2 ≤ 3x - 1 < 11 on the number line shown below.[2 marks]

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