Question

What type of sequence is this?
15, 12, 9, 6, ...

Answer 1

it has the pattern of -3 every number.

hope that helps

Answer 2

Hey there!

These are the 2 kinds of sequences:

• Arithmetic sequence. This is where we use addition/subtraction in order to get the next term.
• Geometric sequence. This is where we use multiplication/division in order to get the next term.

Let's check the given sequence:

15, 12, 9, 6...

Do we use addition, subtraction, multiplication or division?

Well, we definitely do not multiply or divide anything here, so we have an arithmetic sequence.

Do we use addition or subtraction?

Well, let's take another look at our sequence.

15, 12, 9, 6...

As you can see, we use subtraction in order to get the next term.

Hence, we have

`\boxed{\boxed{\bold{an~arithmetic~sequence}}}`

Hope everything is clear.

Let me know if you have any other questions!

#LearningDoesn'tEnd

:-)