Question

Here are 5 terms of an arithmetic sequence.
6,11,16,21,26
Find an expression in terms of n,for the nth term of the sequence.

Answer 1

5n+1 is the answer, you sweet the gap between the numbers(5) and then you minus that number from the first term in the sequence (6-5=1) and then the 5 is first and because the number before the first term is positive, its +1---thus giving you 5n+1