Question

Classify the following list of numbers as an arithmetic sequence, a geometric sequence, some other sequence, or not a sequence.

9, 4, −1
, −6
, . . .

(1 point)
Responses

arithmetic sequence
arithmetic sequence

some other sequence
some other sequence

geometric sequence
geometric sequence

not a sequence

Answer 1

Arithmetic sequence — consecutive terms differ by a constant: 4−9 = −5, −1−4 = −5, −6−(−1) = −5 (common difference −5).