Question

Classify each sequence as arithmetic, geometric, or neither by dragging it into the correct box.
Arithmetic Geometric Neither
5,8,11,14,17,…,3,6,12,24,48…4,7,12,19,31,.....

Answer 1

In "1 2 3 4 5 6 7 8 9 10" do you see a common ratio or a common difference?

Answer 2

Sorry idk where that 123 thing came from

Answer 3

Check the bottom of your own post.

Answer 4

Yea it doesn't exist in my question, idk it appeared there

Answer 5

You meant 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 there.

Answer 6

OK, so be it. Forget that.

Instead, look at " 5,8,11,14,17, "
I ask you the same question.

Answer 7

idk how it came, cuz I mean it wasn't on the problem I have

Answer 8

Look at 5,8,11,14,17,

Answer 9

Okay

Answer 10

arith, geom or neither?

common ratio, common difference or neither?

Answer 11

Hmm...neither

Answer 12

Correct me if I'm wrong

Answer 13

Am I right?

Answer 14

Look at 5,8,11,14,17, again.

How do we get FROM 5 TO 8? FROM 8 TO 11?

Answer 15

Oh, 3

Answer 16

Are you mult. or are you adding?

Answer 17

Well I added

Answer 18

Then you have an "arithmetic sequence.":

Answer 19

Oh okay

Answer 20

Look at " 3,6,12,24,48 " How do you get from 3 to 6? from 6 to 12? and so on ?

Answer 21

You multiply by 2

Answer 22

And 2 is called the "common ratio."

So, what kind of seq. is this?

Answer 23

and 4,7,12,19,and 31 is neither, and the one we are discussing is Geomitric, right?

Answer 24

Yes, the 2nd is a geom. seq. and yes, the 3rd one 3,6,12,24,48 is neither.

very good.

Answer 25

Wait, 3,6,12,24, and 48 is neither?

Answer 26

Wait, how do you get from 3 to 6? How do you get from 6 to 12? Now do you get frrom 12 to 24?