Algebra-1

Question Analysis
This question tests the student's ability to determine the first term of an arithmetic sequence given the second term and the common difference. The student needs to use the relationship between the terms to find the first term.

Key Concept Explanation
The recursive formula for an arithmetic sequence involves the first term and the common difference. The first term can be found using the relationship .

Step-by-step Solution
1. Identify the second term:
2. Identify the common difference:
3. Use the relationship to find :