Question detail
method check: find the nth term of the arithmetic sequence 4, 8, 12, 16.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Sequences
Question
- A. 4n + 0
- B. 7
- C. 1
- D. 8
Answer
The correct answer is 4n + 0.
Explanation
The distractors change the result or the form of the answer. The canonical solution reaches 4n + 0, so 4n + 0 is the only option consistent with the working.
Common mistake
Recognising sequences common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Foundation and Higher] Recognise and use triangular, square and cube numbers and simple arithmetic progressions..
Show the method first, then give the final answer in the required form. Apply this directly to Recognising sequences.
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