Answer:
3, 1, –1, –3, ... arithmetic
4, 3, –3, –4, … neither
2, -1, ½,-¼ ... geometric
Step-by-step explanation:
3, 1, –1, –3, ...
We are subtracting 2 from the previous term
This is an arithmetic sequence
4, 3, –3, –4, …
There is no number that we can add to each term to get the next
There is no number that we can multiply to each term to get the next
neither
2, -1, ½,-¼ ...
We can multiply by -1/2 to get the next term
This is a geometric sequence
