Question

Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 5, 20, 80, ...​

Answer 1

Answer:

The sequence is a geometric sequence and the common ratio is 4.

Step-by-step explanation:

Because the difference between two pairs of adjacent numbers are not constant, the sequence has to be a geometric sequence. To find the ratio of a geometric sequence, just divide any of the two adjacent numbers. That would give you a ratio of 4 as your answer.