Question

Which describes this type of series? -20 -18 -15 -11 -....

Answer 1

I see that the order is -2 -3 -4 and so...but would that make it arithmetic or geometric?

Answer 2

Or would it be neither arithmetic nor geometric?

Answer 3

you are correct, neither is the way to go because the pattern is changing every step.

Answer 4

Are you sure, because it seems to have a similar pattern by subtracting an extra one each time?

Answer 5

For it to be arithmetic, does it have to have the same amount to subtract by? for ex: -3 -3 -3...

Answer 6

You are correct :)