The nth term of a sequence is given. Find the first 4 terms.
-$$a _ { n } = 8 n - 1$$
A) $8,15,23,31$
B) $9,15,23,31$
C) $7,15,23,31$
D) $7,17,23,33$

Question

Quizplus · Accepted Answer

To find the first 4 terms, substitute $n$ with 1, 2, 3, and 4 into the formula $a_n = 8n - 1$. For $n=1$, $a_1 = 8(1) - 1 = 7$. For $n=2$, $a_2 = 8(2) - 1 = 15$. For $n=3$, $a_3 = 8(3) - 1 = 23$. For $n=4$, $a_4 = 8(4) - 1 = 31$.

The Nth Term of a Sequence Is Given an=8n−1a _ { n } = 8 n - 1an​=8n−1

The Nth Term of a Sequence Is Given $a _ { n } = 8 n - 1$