Question

Using the graph below, what is the common ratio of the geometric sequence?

A. r = 8
B. r = 4
C.r = 1/4
D. r = −24

Answer 1

As your n value increases, your t_n value is divided repeatedly by 4. You can find the common ratio here by divided one term in the sequence by the one before it; 8/32 and 2/8 both produce the same ratio - 1/4 - so it’s safe to assume that 1/4 is your common ratio.