a4 = 9+2(n-1)
What is the common difference?
What is the initial term?
What term is the formula finding?
What value should replace n?
A. 2
B. 9
C. 4
D. 6
choose one answer for each question
The common difference is 2.
The initial term is 9.
The formula is finding the nth term.
The value that should replace n depends on what term you are trying to find.