1MA0 Foundation November 2013 Paper 2 Q6
6 Here are the first five terms of a number sequence.
40 37 34 31 28
(a)
(i) Write down the next two terms of this number sequence.
(ii) Explain how you got your answer.
(2)Here are the first five terms of a different number sequence.
\(-12\) \(-7\) \(-2\) 3 8
(b) Find the 8th term of this sequence. (2)
| Answer | Mark | Notes |
|---|---|---|
| (i) 25, 22 | 2 | B1 cao |
| (ii) Subtract 3 | B1 for correct description Eg. ‘subtract 3’ or ‘goes down by 3’ oe or ‘take-away 3’ or \(-3\) or \(43 - 3n\) seen |
| Answer | Mark | Notes |
|---|---|---|
| 23 | 2 | M1 for +5 seen or for continuing sequence for at least 2 terms (condone one arithmetic error) or \(5n - 17\) A1 cao |