Question

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

n an
1 40
2 47
3 54

an = 40 + 7(n − 1) where n ≥ 40
an = 40 + 7(n − 1) where n ≥ 1 <<
an = 40 − 7(n − 1) where n ≥ 40
an = 40 − 7(n − 1) where n ≥ 1

Answer 1

@Vocaloid

Answer 2

yeah that's right