Question

What is the tenth term in the sequence defined by `a(n)=3+2(n-1)`?

Answer 1

a(10) = 3 + 2(9) = 21

Explanation:

This is called an explicit formula. That means that we can find any term by substituting in the term number for "n".

a(10) = 3 + 2(10-1) or 3 + 2(9) = 3 + 18 = 21