which choice answer is it?

Answer:
2. a1 = 10 and an = a(n-1) + 2
Step-by-step explanation:
10 is our first term so it would be a of 1.
Then, in this arithmetic sequence, it is increasing by 2.
So, therefore our recursive formula for this arithmetic sequence would be:
a(n) = a(n-1) + 2
Answer:
It's (2).
Step-by-step explanation:
The first term a1 = 10 and the common difference is 12 - 10 = 2.
So it is a1 = 10 and an = a(n-1) + 2.