Question

Given an arithmetic sequence in the table below, create the explicit formula and list any restrictions to the domain.

Answer 1

n an
1 9
2 3
3 −3

Answer 2

common difference=t2-t1=3-9=-6

Answer 3

tn=a1+(n-1) d

Answer 4

an = 9 − 3(n − 1) where n ≤ 9
an = 9 − 3(n − 1) where n ≥ 1
an = 9 − 6(n − 1) where n ≤ 9
an = 9 − 6(n − 1) where n ≥ 1

Answer 5

I got D?

Answer 6

correct.

Answer 7

Thanks :)

Answer 8

yw