Question

What are the explicit equation and domain for an arithmetic sequence with a first term of 6 and a second term of 2?

an = 6 − 2(n − 1); all integers where n ≥ 1

an = 6 − 2(n − 1); all integers where n ≥ 0

an = 6 − 4(n − 1); all integers where n ≥ 0

an = 6 − 4(n − 1); all integers where n ≥ 1

Answer 1

which do you think?

Answer 2

I honestly don't know, I'm stuck /:

Answer 3

well, question says first term needs to be 6. So which following options get you 6 as first term?

Answer 4

C?