Algebra-1

To find the explicit rule for the sequence , let's analyze it step-by-step.

1. Identify the First Term

The first term of the sequence is:

f(1) = 13

 

2. Calculate the Common Ratio

To find the common ratio, divide each term by its preceding term:

This confirms that the common ratio r is 3.

 

3. General Formula for a Geometric Sequence

The general formula for a geometric sequence is:

Click "Show Answer" to reveal the answer and analysis