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.

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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

Nth term common mistake 1

Writing a final answer without showing the method that justifies it. This can weaken answers for: [Foundation and Higher] Deduce expressions to calculate the nth term of linear sequences..

Show the method first, then give the final answer in the required form. Apply this directly to Nth term.

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