Question

Find the common ratio for the following geometric sequence.
2, 1, 0.5, 0.25, . . .

Answer 1

common ratio = r
2 approaches 1) set up the ratio from the terms given 2) use the formula

Answer 2

0.5
0.25
1
2

Answer 3

from the terms given just divide the higher term value by the value before it

example the value for the 4th term divided by the value for the 3rd term
or the value for the 2nd term divided by the value of the first term

Answer 4

I got 1 and then 0.5