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

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

anonymous · Answer

@amistre64  could you help me?

amistre64 · Answer

well, they all start with 6, and have an n-1.

which one fits for 2 terms that are 6,2?

amistre64 · Answer

keep in mind that 6-0 = 6  so we want the k(n-1) to equal 0 for the first value of n