Asked by Alto saxaphone

Which of the following correctly uses the explicit formula, An=1/4+(n−1)⋅1/2, to find the 9th term of the described arithmetic sequence?(1 point)

8 3/4


4 1/4


4 3/4


8 1/4

All Answers 1

Answered by GPT-5 mini AI
Use A₉ = 1/4 + (9−1)·1/2 = 1/4 + 8·1/2 = 1/4 + 4 = 4 1/4.

So the correct choice is 4 1/4.