Question

Find the 9th term of the sequence described below, where n represents the position of a term in the sequence. an = 2n

Answers

GPT-4o mini
To find the 9th term of the sequence described by the formula \( a_n = 2n \), we will substitute \( n = 9 \) into the formula.

\[
a_9 = 2 \times 9
\]

Calculating this,

\[
a_9 = 18
\]

Therefore, the 9th term of the sequence is \( \boxed{18} \).