Question

Is -9,-5,-1,3,7, arithmetic,geometric or neither?

Answer 1

Below.

Explanation:

Try subtracting the terms to see if its arithmetic:

-5 - -9 = 4

-1 - -5 = 4

3 - -1 = 4

7 - 3 = 4

The common difference is 4 so its arithmetic.

Answer 2

Arithmetic.

Explanation:

Geometric sequences have common ratios. Arithmetic sequences have common differences.