O-LevelMathematicsAlgebra and graphs4024/23 · May/June 2025 · Q123 Marks
These are the first four terms of a sequence. 16 13 10 7
- (a)Write down the next term of the sequence.[1]
- (b)Find an expression for the nth term of the sequence.[2]
Mark scheme
Marking points from the official mark scheme (May/June 2025). The mark or mark type is shown in brackets.
- [1] 4
- [2] 19-3n oe final answer
- B1 for -3n + m oe or 19 - kn oe (k > 0)
- or 19 - 3n oe seen and then spoilt
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