What are the explicit equation and domain for an arithmetic sequence with a first term of 8 and a second term of 5?

an= 8 ? 5(n ? 1); all integers where n ? 1[removed] an= 8 ? 5(n ? 1); all integers where n ? 0[removed] an= 8 ? 3(n ? 1); all integers where n ? 1[removed] an = 8 ? 3(n ? 1); all integers where n ? 0