Question

# Complete the recursive formula of the arithmetic sequence -17, -8, 1, 10,... a(1)= a(n)=a(n-1)+

Answer

a(n) = a(n-1) + 9

- Identify the common difference d by subtracting any term from the previous term. d = -8 - (-17) = 9.
- State the recursive formula: a(n) = a(n-1) + d.
- Substitute the values: a(n) = a(n-1) + 9.