Question

The following sequence is arithmetic- true or false?
2, -2, 2, -2, 2

Answer 1

I think false?

Answer 2

To determine if it is arithmetic, we have to see if there is a common difference between the numbers.

So 2 and -2, has a common difference of -4 (-2 - 2 = -4), and -2 and 2 has difference of positive 4 (2- -2 = 4). So therefore it is FALSE

Answer 3

That's what I thought, but I wasn't sure. Thank you!