Quelpr
1 markSubstitution in Algebraic Expressions

CSEC Mathematics · May/June 2007 · Paper 2 · Question 9(b)(iii)

The length of a rectangle is (2x – 1) cm and its width is (x + 3) cm.

Hence, state the dimensions of the rectangle, in centimetres.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 9(a)(i)Calculate the value of g (-2).[7 marks]
  2. 9(a)(ii)Write an expression for gf(x) in its simplest form.[1 mark]
  3. 9(a)(iii)Find the inverse function g⁻¹(x).[1 mark]
  4. 9(b)(i)Write an expression in the form ax² + bx + c for the area of the rectangle.[8 marks]
  5. 9(b)(ii)Given that the area of the rectangle is 294 cm², determine the value of x.[1 mark]

More practice: the rest of this paper · more Substitution in Algebraic Expressions questions · all CSEC Mathematics past papers