Given the arithmetic sequence an = 4 + 8(n − 1), what is the domain for n?
all integers
all integers where n ≥ 1
all integers where n ≥ 0
all integers where n > 1

N represents which term
so we can have the 1st, 2nd, 3rd, etc, to the nth term
so n has to be all integers starting with 1 and up
so that would be the option: "All integers where n≥1"

answer is 2nd option