# louisvuittonsac-pascher.info Sequences and Series Session

##### Mar. 6, 2015

Session Transcript - Live Math Tutoring - MTH/209, 2/28/2015 6:33PM - louisvuittonsac-pascher.info- louisvuittonsac-pascher.info
Session Date: 2/28/2015 6:33PM ET
Length: 20.9 minute(s)
Subject: Live Math Tutoring - MTH/209

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System Message
[00:00:00] *** Please note: All sessions are recorded for quality control. ***

AUDRA (Customer)
[00:00:00] *** The student has 563 minutes remaining. ***
[00:00:00] sequences

Brook P (Tutor)
[00:00:10] Hi. Welcome to louisvuittonsac-pascher.info . How may I help you today?

AUDRA (Customer)
[00:00:15] File Shared > problem 1.jpg
[00:00:18] Hello
[00:00:26] I attached the first part of the problem im working on

Brook P (Tutor)
[00:00:37] Please give me a moment while I look over the problem you've sent.

AUDRA (Customer)
[00:00:40] NP
[00:01:00] If you'd like to paste it, I can circle which part Im on

Brook P (Tutor)
[00:02:47] Ok. A geometric sequence is has a common ratio, while a arithmetic sequence has a common difference. I can write two examples on the board for you.
[00:03:48] So, when you're multiplying or dividing by the same number every time, it's geometric.
[00:04:03] When you're adding or subtracting the same number every time, it's arithmetic.
[00:04:08] Does that make sense?

AUDRA (Customer)
[00:04:47] yes
[00:05:05] so we are subtracting by same #, so it'd be arithmetic?

Brook P (Tutor)
[00:05:13] Yes, good job!
[00:05:47] Do you have any other questions for me today?

AUDRA (Customer)
[00:05:57] yes, let me attach...

Brook P (Tutor)
[00:06:03] Ok

AUDRA (Customer)
[00:07:04] File Shared > problem 1.jpg
[00:07:29] divide by the same # = geometric

Brook P (Tutor)
[00:07:37] You got it!

AUDRA (Customer)
[00:07:50] common ratio

Brook P (Tutor)
[00:08:08] Yep!

[00:08:11]

AUDRA (Customer)
[00:08:28] and the common ratio is..
[00:08:31] 0.2?
[00:08:34] or 0.5?

Brook P (Tutor)
[00:09:08] To figure that out we can take any number in the sequence and divide it by the number that comes before it.
[00:09:22] So, do 1828 divided by 3656.

AUDRA (Customer)
[00:09:38] 0.5

Brook P (Tutor)
[00:09:45] Nice work!

AUDRA (Customer)
[00:11:09] File Shared > problem 1.jpg
[00:11:20] theyre a few to get thru the section if you have the time

Brook P (Tutor)
[00:11:36] Sure. I can stay on for a bit.

AUDRA (Customer)
[00:11:40] ty
[00:11:54] the common difference is....
[00:12:09] 1, correct?

Brook P (Tutor)
[00:12:23] Take any term in the sequence and subtract the one that comes before it.
[00:12:34] So, do -7 - (-6).

AUDRA (Customer)
[00:13:11] =-13

Brook P (Tutor)
[00:13:32] Not quite. -7 - (-6) is the same thing as -7 + 6.

AUDRA (Customer)
[00:13:44] -1

Brook P (Tutor)
[00:13:49] Good work!
[00:14:06] It's negative 1 because it's going DOWN by 1.
[00:14:33] It would be 1 if it were going UP by 1.

AUDRA (Customer)
[00:15:10] yes
[00:15:13] here is the next

[00:15:24] File Shared > problem 1.jpg
[00:15:50] common difference/ arithmetic ?

Brook P (Tutor)
[00:16:13] Are you adding or subtracting the same number every time?

AUDRA (Customer)
[00:16:31] oh, common ratio/geometric

Brook P (Tutor)
[00:16:38] Yes!

AUDRA (Customer)
[00:17:02] and the common ratio is -2

Brook P (Tutor)
[00:17:13] Yes!

AUDRA (Customer)
[00:17:45] ok, shld be only 1 more...

Brook P (Tutor)
[00:17:53] Ok

AUDRA (Customer)
[00:18:53] File Shared > problem 1.jpg
[00:19:13] common ratio is ...
[00:19:33] 0.2

Brook P (Tutor)
[00:19:43] You got it!

AUDRA (Customer)
[00:20:18] TY sooo much! You have really helped me understand this!

[00:20:23]

Brook P (Tutor)
[00:20:37] I'm so glad! You did a great job, too!

AUDRA (Customer)
[00:20:47] TY!

Brook P (Tutor)
[00:20:49] Thanks for using louisvuittonsac-pascher.info.Â Please fill out the survey as you leave so we can learn how we can better help you in the future!Â  Have a great night!

Live Math Tutoring - MTH/209 occurred 2/28/2015 @ 6:33PM and lasted 20:51
sequences

SYSTEM (System)
[00:00:00]*** Please note: All sessions are recorded for quality control. ***
AUDRA (Customer)
[00:00:00]*** The student has 563 minutes remaining. ***
[00:00:00]sequences
Brook P (Tutor)
[00:00:10]
AUDRA (Customer)
[00:00:18]Hello
[00:00:26]I attached the first part of the problem im working on
Brook P (Tutor)
[00:00:37]Please give me a moment while I look over the problem you've sent. :-)
AUDRA (Customer)
[00:00:40]NP
[00:01:00]If you'd like to paste it, I can circle which part Im on :-)
Brook P (Tutor)
[00:02:47]Ok. A geometric sequence is has a common ratio, while a arithmetic sequence has a common difference. I can write two examples on the board for you.
[00:03:48]So, when you're multiplying or dividing by the same number every time, it's geometric.
[00:04:03]When you're adding or subtracting the same number every time, it's arithmetic.
[00:04:08]Does that make sense?
AUDRA (Customer)
[00:04:47]yes
[00:05:05]so we are subtracting by same #, so it'd be arithmetic?
Brook P (Tutor)
[00:05:13]Yes, good job!
[00:05:47]Do you have any other questions for me today?
AUDRA (Customer)
[00:05:57]yes, let me attach...
Brook P (Tutor)
[00:06:03]Ok
AUDRA (Customer)
[00:07:29]divide by the same # = geometric
Brook P (Tutor)
[00:07:37]You got it!
AUDRA (Customer)
[00:07:50]common ratio
Brook P (Tutor)
[00:08:08]Yep!
[00:08:11]:-)
AUDRA (Customer)
[00:08:28]and the common ratio is..
[00:08:31]0.2?
[00:08:34]or 0.5?
Brook P (Tutor)
[00:09:08]To figure that out we can take any number in the sequence and divide it by the number that comes before it.
[00:09:22]So, do 1828 divided by 3656.
AUDRA (Customer)
[00:09:38]0.5
Brook P (Tutor)
[00:09:45]Nice work!
AUDRA (Customer)
[00:11:20]theyre a few to get thru the section if you have the time
Brook P (Tutor)
[00:11:36]Sure. I can stay on for a bit. :-)
AUDRA (Customer)
[00:11:40]ty
[00:11:54]the common difference is....
[00:12:09]1, correct?
Brook P (Tutor)
[00:12:23]Take any term in the sequence and subtract the one that comes before it.
[00:12:34]So, do -7 - (-6).
AUDRA (Customer)
[00:13:11]=-13
Brook P (Tutor)
[00:13:32]Not quite. -7 - (-6) is the same thing as -7 + 6.
AUDRA (Customer)
[00:13:44]-1
Brook P (Tutor)
[00:13:49]Good work!
[00:14:06]It's negative 1 because it's going DOWN by 1.
[00:14:33]It would be 1 if it were going UP by 1.
AUDRA (Customer)
[00:15:10]yes
[00:15:13]here is the next
[00:15:50]common difference/ arithmetic ?
Brook P (Tutor)
[00:16:13]Are you adding or subtracting the same number every time?
AUDRA (Customer)
[00:16:31]oh, common ratio/geometric
Brook P (Tutor)
[00:16:38]Yes! :-)
AUDRA (Customer)
[00:17:02]and the common ratio is -2
Brook P (Tutor)
[00:17:13]Yes! :-)
AUDRA (Customer)
[00:17:45]ok, shld be only 1 more...
Brook P (Tutor)
[00:17:53]Ok
AUDRA (Customer)
[00:19:13]common ratio is ...
[00:19:33]0.2
Brook P (Tutor)
[00:19:43]You got it!
AUDRA (Customer)
[00:20:18]TY sooo much! You have really helped me understand this!
[00:20:23]:-)
Brook P (Tutor)
[00:20:37]I'm so glad! You did a great job, too! :-)
AUDRA (Customer)
[00:20:47]TY!
Brook P (Tutor)
[00:20:49]Thanks for using louisvuittonsac-pascher.info. Please fill out the survey as you leave so we can learn how we can better help you in the future!  Have a great night!

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