Foundation November 2021 Paper 2 Q6
6 Here are the first four terms of a number sequence.
4 8 12 16
(a) Write down the next term of the sequence. (1)
(b) Explain how you found your answer to part (a). (1)
(c) Find an expression, in terms of \(n\), for the \(n\)th term of the sequence. (1)
| Scheme | Marks |
|---|---|
| 20 | B1 |
| (1) |
Notes
B1: cao
| Scheme | Marks |
|---|---|
| add 4 | B1 |
| (1) |
Notes
B1: oe 4 times table or \(4n\) or goes up in 4’s, allow ‘the gap is +4’ but not ‘the gap is 4’
| Scheme | Marks |
|---|---|
| \(4n\) | B1 |
| (1) | |
| (3 marks) |
Notes
B1: \(4n + 0\) not \(n = 4 \times n\)