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2 marksNumber Sequences and Rules

CSEC Mathematics · January 2009 · Paper 2 · Question 8(a)

The figure shows the first three diagrams in a sequence. Each diagram is made up of dots connected by line segments. In each diagram, there are d dots and l line segments.

Draw the fourth diagram in the sequence.

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Other parts of this question

  1. 8(b)Complete the table by inserting the missing values at the rows marked (i) and (ii).[4 marks]
  2. 8(c)(i)How many dots are in the sixth diagram of the sequence?[1 mark]
  3. 8(c)(ii)How many line segments are in the seventh diagram of the sequence?[1 mark]
  4. 8(c)(iii)Write the rule which shows how l is related to d.[2 marks]

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