Use the Formula for the General Term of an Arithmetic Sequence
-Find a8 when a $1 = - 9 , d = - 4$.
A) $- 37$
B) $- 41$
C) 19
D) 23

Name: Use the Formula for the General Term of an Arithmetic Sequence -Find a8 when a $1 = - 9 , d = - 4$. A) $- 37$ B) $- 41$ C) 19 D) 23
Brand: Quizplus
Rating: 4.9 (34 reviews)

Question

Quizplus · Accepted Answer

The formula for the nth term of an arithmetic sequence is $a_n = a_1 + (n - 1)d$. Substituting $a_1 = -9$, $d = -4$, and $n = 8$, we get $a_8 = -9 + (8 - 1)(-4) = -9 - 28 = -37$.

Use the Formula for the General Term of an Arithmetic 1=−9,d=−41 = - 9 , d = - 41=−9,d=−4

Use the Formula for the General Term of an Arithmetic $1 = - 9 , d = - 4$