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2 marksAddition Rule for Probability

CSEC Additional Mathematics · 2016 · Paper 2 · Question 1(a)(iii)

A function f(x) = 2x - 5 is defined with a domain of {-2, -1, 0, 1}.

Sketch the graphs of f(x) and f⁻¹(x) on the same axes.

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Other parts of this question

  1. 1(a)(i)Determine the range of the function.[2 marks]
  2. 1(a)(ii)Find f⁻¹(x).[1 mark]
  3. 1(a)(iv)Comment on the relationship between the two graphs.[1 mark]
  4. 1(b)Solve the equation 2^(2x + 1) + 5(2^x) – 3 = 0.[4 marks]
  5. 1(c)(i)Given that T = kp^(b/c), make c the subject of the formula.[2 marks]
  6. 1(c)(ii)Solve the equation log(x + 1) + log(x - 1) = 2 log(x + 2).[2 marks]

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