Question

determine whether each sequence is geometric. If so, find the common ratio.

1,2,4,8

Answer 1

A geometric sequence multiplies by the same amount each time.
What do you multiply the first number by to get the second number? Would multiplying the second number by that same thing give me the third number? What about multiplying the third number by that same thing? Would it give me the fourth number?

Answer 2

so this is a geometric sequence

Answer 3

2