identify the sequence as arithmetic, geometric, or neither. explain your answer.
1.6 , 0.8 , 0.4 , 0.2 ....
3 answers
It looks like we are taking 1/2 of the previous number or dividing by two. Any time you are multiplying or dividing you have a geometric sequence. If you are adding or subtracting a constant, then you have an arithmetic sequence.
geometric... just common sense
Why is it Geometric though