Quelpr
3 marksSubstitution in Algebraic Expressions

CSEC Mathematics · January 2008 · Paper 2 · Question 7(a)

Given the function y = x^2 - 4x, the question asks to complete a table of values.

Given that y = x^2 - 4x, copy and complete the table below.

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. 7(b)Using a scale of 2 cm to represent 1 unit on both axes, draw the graph of the function y = x^2 - 4x for -1 ≤ x ≤ 5.[4 marks]
  2. 7(c)(i)On the same axes used in (b) above, draw the line y = 2.[1 mark]
  3. 7(c)(ii)State the x-coordinates of the two points at which the curve meets the line.[2 marks]
  4. 7(c)(iii)Hence, write the equation whose roots are the x-coordinates stated in (c) (ii).[1 mark]

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