What are the values of A sub 1 and r of the geometric series? 2 minus 2 plus 2 minus 2 plus 2

The first term of the series, A₁, is 2. The common ratio is found by dividing a term by the one before it: −2 ÷ 2 = −1. This ratio also takes each term to the next, so the correct choice is D: A₁ = 2 and r = −1.

AI-written and checked against the verified answer.