Question

1. Which of the following is a geometric sequence?

Answer 1

Answer:

5, -25, etc

Step-by-step explanation:

It involves multiplying to get each answer, so it is geometric

Answer 2

Answer:

5, -25, 125, -625,...

Step-by-step explanation:

In order to test if something is geometric, just divide each element by the previous element. It is geometric if the number is always the same.

-25/5=-5

125/-25=-5

-625/125=-5

The other options do not fall into this pattern.