Question

What is the sequence 9,18,36,72 in Recursive and Explicit formula?

Answer 1

Step-by-step explanation:

Each term is double the previous term.  The recursive formula is:

aₙ₊₁ = 2 aₙ

The first term is 9, so the explicit formula is:

aₙ = 9 (2)ⁿ⁻¹