Question

Which of the following best describes set of numbers? 6, 9, 12, 15, ... infinite alternating sequence finite geometric sequence infinite arithmetic series infinite arithmetic sequence?

Answer 1

This is an infinite arithmetic series

Answer 2

It is an infinite arithmetic sequence

Explanation:

we are given a set of numbers:

6,9,12,15,...

As we can see that

9-6=3

12-9=3

15-12=3

So, given set of numbers are a sequence of arithmetic progression with common difference 3 and terms in the sequence are infinite.

Hence, it is an infinite arithmetic sequence