How do you tell whether the sequence -8, 2, 12.... is arithmetic, geometric, or neither?
1 Answer
Oct 17, 2015
The given sequence could be arithmetic.
Explanation:
With so few terms, it is impossible to say for certain
however there appears to be a relationship between the terms of the form:
which would be an arithmetic sequence.
Since
and
We can assert that this is not a geometric sequence.
(A geometric sequence requires: