Algebra-1

Question Analysis
This question involves identifying the common difference from a given recursive formula. The main focus is on recognizing how d is represented in the recursive rule.

Key Concept Explanation
In the recursive formula for an arithmetic sequence,  (), the value added to the previous term () is exactly the common difference d. This includes negative values, which indicate a decreasing sequence.

Step-by-Step Solution
Compare the given recursive formula  to the general form