Answer:
C
Step-by-step explanation:
So we have the following sequence:
-7, -3, 1, 5...
As given, the (direct) formula for any arithmetic sequence is:
[tex]a_n=a_1+d(n-1)[/tex]
Where aₙ is the value of the nth term, a₁ is the value of the first term, and d is the common difference.
From the sequence, we can see that the initial/first term is -7. Thus, a₁ is -7.
And we can see that each subsequent number if 4 greater than the previous one. Thus, the common difference is +4.
Therefore, plugging these into our equation, we have:
[tex]a_n=-7+4(n-1)[/tex]
The answer is C.
