Question 10 • Advanced Financial Algebra
The first balance is $10,000, and each balance decreases by $500, so the common difference is −$500. Using the arithmetic sequence formula aₙ = a₁ + (n − 1)d gives aₙ = 10,000 − 500(n − 1). This is choice D, “aₙ = 10,000 − 500(n − 1).”
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