Respuesta :

domain is the numbers  you can use
the n stands for the which term

like 1st term, 2nd term, 3rd term, etc

so it makes sense that n is the set of all natural numbers (also called the set of counting numbers)

Answer:

Domain for n is All integers where n ≥ 1.

Step-by-step explanation:

Given the arithmetic sequence

[tex]a_n=-5+3(n-1)[/tex]

In arithmetic sequence, [tex]a_n=a+(n-1)d[/tex]

where a is first term.

d is common difference.

n is number of terms.

Now, in given sequence recursive formula for nth term is

[tex]a_n=-5+3(n-1)[/tex]

the number of term is n and it belongs to natural number.

Hence, domain for n is All integers where n ≥ 1.