Sequences
1 mark · EasyWrite down the second and third terms of the sequence that starts at 7 and increases by 5 each time.
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(a) 12
(b) 17
Common mistakes: Giving the first term instead of next two
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Marking points
B1 · 1 mark · Both 12 and 17 correct (either order not allowed, must be 2nd then 3rd term)
Worked solution
First term: 7 Add 5: 7 + 5 = 12 (second term) Add 5 again: 12 + 5 = 17 (third term) So the answers are 12 and 17.