Question

Find a formula for the nth term Tn of the following arithmetic sequence: 6,7,8,9

Answer 1

9514 1404 393

Answer:

Tn = n+5

Explanation:

The common difference of this arithmetic sequence is 7-6 = 1. The first term is 6, so the generic term can be written ...

Tn = a1 +d(n -1)

Tn = 6 + 1(n -1)

Simplified, this is ...

Tn = 5 +n