Higher November 2017 Paper 5 Q2
2
(a) Write the next term in each of these sequences.
(i) 1 1 2 3 5 8 [1]
(ii) 2 4 8 16 32 64 [1]
(b) Write an expression for the \(n\)th term of the sequence below.
15 12 9 6 [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (i) 13 | 1 | Ignore subsequent terms | |
| (ii) 128 | 1 | Ignore subsequent terms | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(18 - 3n\) oe | 2 | M1 for \(-3n + k\) oe or for \(mn + 18\) oe \((m \ne 0)\) | For 2 or M1, condone eg \(n = 18 - 3n\) For 2 or M1, condone use of other variable instead of \(n\) |