Question

Classify the following list of numbers as an arithmetic sequence, a geometric sequence, or neither.

9,4,-1,-6

(1 point)
Responses

Arithmetic
Arithmetic

Not enough information given
Not enough information given

Geometric
Geometric

Neither

Answer 1

Arithmetic — the differences are constant: 4−9 = −5, −1−4 = −5, −6−(−1) = −5, so it's an arithmetic sequence with common difference −5.