# Tutor.com Quadratic and Exponential Functions Session

##### Sep. 11, 2012

Session Transcript - Math - Algebra, 9/6/2012 7:24AM - Tutor.comSession Date: 9/6/2012 7:24AM
Length: 20.3 minute(s)
Subject: Math - Algebra

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

Victoria (Customer)
[00:00:00] Did I get this right?

Cynthia V (Tutor)
[00:00:11] Welcome to Tutor.com ! My name is Cynthia. How are you today?

Victoria (Customer)
[00:00:24] Im doing great, how about you?

Cynthia V (Tutor)
[00:00:30] I'm doing great too
[00:00:35] HOw can I help you today

Victoria (Customer)
[00:01:39] I got this problem... - (x^2y)^4. And my answer is - x^8y^4... Did I get it right?

Cynthia V (Tutor)
[00:01:59] You got it!
[00:02:12] yes you did

Victoria (Customer)
[00:02:21] YES!!!

Cynthia V (Tutor)
[00:02:29] Great job !!! YAY
[00:02:34] Do you have another one to check?

Victoria (Customer)
[00:03:15] Yes ma'am.

Cynthia V (Tutor)
[00:03:26] ok what is your next one
[00:04:24] ok do you have an answer already for this one?

Victoria (Customer)
[00:06:39] No ma'am.

Cynthia V (Tutor)
[00:06:43] ok lets do it together first lets put a '1' before that 'x' that will help us work with that negative sign
[00:07:03] so lets do (-1) 2 first
[00:07:06] what is that?

Victoria (Customer)
[00:08:14] Ain't it (-2)

Cynthia V (Tutor)
[00:08:22] not quite
[00:08:28] first what is a negative times a negative?

Victoria (Customer)
[00:08:36] positive

Cynthia V (Tutor)
[00:08:41] good
[00:08:45] now what is 1 times 1 ?

Victoria (Customer)
[00:09:11] 1

Cynthia V (Tutor)
[00:09:07] You got it!
[00:09:23] so our number part is +1
[00:09:32] do you understand that?

Victoria (Customer)
[00:09:46] Could you explain it for me?

Cynthia V (Tutor)
[00:09:55] of course
[00:10:11] let me put it on the board to show you all the steps
[00:10:45] does that help ?

Victoria (Customer)
[00:10:53] Yeas it does

Cynthia V (Tutor)
[00:10:58] ok great
[00:11:04] now lets look at the 'x' in your problem
[00:11:08] what do we get there?

Victoria (Customer)
[00:11:15] x^1

Cynthia V (Tutor)
[00:11:28] we are raising it to the '2' power
[00:12:20] let me write it out for you
[00:12:45] that 'x' did start with a '1' exponent...
[00:13:09] and like you did for the first problem when you raise an exponent to another exponent you multiply the two exponents together
[00:13:19] so what is 1x2

Victoria (Customer)
[00:14:25] 2

Cynthia V (Tutor)
[00:14:21] You got it!
[00:14:47] so we get x 2
[00:14:53] now we do the same for the y
[00:15:17] what would we get?

Victoria (Customer)
[00:15:31] y^4

Cynthia V (Tutor)
[00:15:24] You got it!

Victoria (Customer)
[00:15:54] YAY!

Cynthia V (Tutor)
[00:15:57] Do you have any questions ?

Victoria (Customer)
[00:16:40] No ma'am

Cynthia V (Tutor)
[00:16:46] ok great... can you please do the survey for me when you leave the classroom... if you have more questions please come back
[00:16:58] It is very nice working with you.. you are very patient

Victoria (Customer)
[00:19:01] Yes ma'am I will Bye Bye and haaaaaaaaavvvvee a AHHMAZING day

Cynthia V (Tutor)
[00:19:10] YOU TOO!!!