Question

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question 1-6
a sequence is given by the rule $a_n = 2n + 1$ for $n = 1, 2, 3, \dots$
what does the variable $n$ represent in this rule?
○ the value of the sequence
○ the term number in the sequence
○ the common difference
○ the first term of the sequence

Explanation:

In sequence notation $a_n$, the variable $n$ is used to index the terms of the sequence. When $n=1$, it refers to the first term; $n=2$ refers to the second term, and so on. This matches the definition of the term number in the sequence.

Answer:

The term number in the sequence