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2 marksSubstitution in Algebraic Expressions

CSEC Mathematics · May/June 2009 · Paper 2 · Question 5(b)(i)

Given that y = x² + 2x - 3.

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Other parts of this question

  1. 5(a)(i)Calculate the value of f(-2).[1 mark]
  2. 5(a)(ii)Calculate the value of gf(1).[2 marks]
  3. 5(a)(iii)Calculate the value of f⁻¹(3).[2 marks]
  4. 5(b)(ii)Using a scale of 2 cm to represent 1 unit on the x-axis and 1 cm to represent 1 unit on the y-axis, draw the graph of y = x² + 2x - 3 for -4 ≤ x ≤ 2.[5 marks]

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