Question

Which sequences are arithmetic? Check all that apply.

–5, 5, –5, 5, –5, …
96, 48, 24, 12, 6
18, 5.5, –7, –19.5, –32, …
–1, –3, –9, –27, –81, …
16, 32, 48, 64, 80

Answer 1

The arithmetic sequences are 3rd one, and 5th one as they are increasing or decreasing by a constant rate of change