If the third term of an arithmetic sequence is 13 and the seventeenth term is –29, what is the eighth term? Homework Help ✎
Create and solve a system of equations based on the sequence t(n) = an + b:
13 = a(3) + b
−29 = a(17) + b
Use the Elimination Method to solve for a and b.
t(8) = (8)(a) + b = ?