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4MA1/2FR Jun 2024, Question 7: Linear Sequences and Common Difference

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2FR (Foundation) · Calculator · 3 marks

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The question, in short

Sequence starts −3, 5, 13, 21, 29. Find the next term, explain the method, and explain why 326 cannot appear in the sequence.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (ai) · 1 mark

Write down the term that follows 29 in the sequence.

  1. 129 + 8 = 37

Answer37

Part (aii) · 1 mark

Explain the reasoning used to obtain the next term.

  1. 1The difference between each term is 8
  2. 2So the rule is to add 8 each time

AnswerAdded 8

Part (b) · 1 mark

Explain why 326 cannot be a term of this sequence.

  1. 1The terms in the sequence are all odd
  2. 2326 is an even number
  3. 3An odd number plus 8 remains odd
  4. 4So 326 cannot be a term in the sequence

AnswerThe sequence is odd and 326 is even

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