Foundation November 2021 Paper 1 Q14
14
(a) Here are the first four terms of a sequence.\[8 \qquad 15 \qquad 22 \qquad 29\]
(i) Write down the next term in the sequence. [1]
(ii) Explain how you worked out your answer. [1]
(b) The \(n\)th term of a different sequence is given by \(4n + 2\).
Explain why 32 is not a term in this sequence. [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (i) 36 | 1 | Condone further terms if correct | |
| (ii) added 7 | 1 | Needs quantity and direction e.g. Add 7, plus 7, +7 Not \(n\)[th] +7 | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(\dfrac{32 - 2}{4}\) is not an integer | 2 | M1 for \(\dfrac{32 - 2}{4}\) or 30 and 34 | Accept any full alternative methods or arguments e.g. 32 is a multiple of 4 and \(4n + 2\) is not a multiple of 4. |