# Tutor.com Functions Session

##### Mar. 25, 2012

Session Transcript - Math - Algebra, 3/12/2012 2:34PM - Tutor.comSession Date: 3/12/2012 2:34PM
Length: 22.9 minute(s)
Subject: Math - Algebra

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

Guest (Customer)
[00:00:01] can you help me with some questions?

Nancy S (Tutor)
[00:00:08] Welcome to tutor.com ! I'm Nancy.
[00:00:23] Please share the problem that you need help with.

Guest (Customer)
[00:00:22] hi:)

Nancy S (Tutor)
[00:00:31] Hi to you! :)

Guest (Customer)
[00:00:55] Dylan created color panels for a wall using a mix of only green and blue paints. He plotted the quantities of blue and green paints used for each mix and connected them using a line segment as shown in the graph below.

Nancy S (Tutor)
[00:03:24] Looks good so far, keep going!
[00:04:18] You know, I think approximate places for the dots will be fine.
[00:06:34] Good. Thanks.
[00:06:43] Which axis represents blue, and which is green?
[00:06:47] Ah ... there you go :)

Guest (Customer)
[00:08:52] Which statement best describes the domain of the function represented in the graph?
[00:09:00] its multiple choice

Nancy S (Tutor)
[00:09:09] Okay, the choices?

Guest (Customer)
[00:09:09] here are the choices:

Nancy S (Tutor)
[00:09:16] (And was I working with you just before now?)

Guest (Customer)
[00:09:24] yes:)

Nancy S (Tutor)
[00:09:33] ha ha :)

Guest (Customer)
[00:09:55] lol here are the choices

Nancy S (Tutor)

Guest (Customer)
[00:09:59] 2 = x = 14 or x is between 2 and 14, inclusive
[00:10:12] 1 = x = 14 or x is between 1 and 14, inclusive
[00:10:23] 0 = x = 9 or x is between 0 and 9, inclusive
[00:10:34] 1 = x = 9 or x is between 1 and 9, inclusive
[00:10:42] ok im done :)

Nancy S (Tutor)
[00:11:05] So, range, from before? That's what the y values are. The "outputs" in a graph.
[00:11:15] Domain, what this question is asking? It's the x values.
[00:11:21] So, what are the x values in the graph?

Guest (Customer)
[00:11:55] 1 through 9

Nancy S (Tutor)
[00:12:01] That's it! :)
[00:12:09] Good job.

Guest (Customer)
[00:12:16] thx!:)

Nancy S (Tutor)
[00:12:23] Anything else?

Guest (Customer)

Nancy S (Tutor)

Guest (Customer)
[00:13:00] its another graph

Nancy S (Tutor)
[00:13:13] Okay, that took a while to draw.
[00:13:28] Will that work, perhaps?

Guest (Customer)
[00:13:49] well its about the range again

Nancy S (Tutor)
[00:14:01] Okay, and is it this graph? Or a different one?

Guest (Customer)
[00:14:09] a different one

Nancy S (Tutor)
[00:14:17] We can use this one to explain, to see if it makes sense to you. Are you willing to try?

Guest (Customer)
[00:14:36] well its kinda different

Nancy S (Tutor)
[00:14:47] Okay, let's get a sketch up.

Guest (Customer)
[00:14:54] ok

Nancy S (Tutor)
[00:15:08] I made a clean board for you.

Guest (Customer)
[00:15:14] thx

Nancy S (Tutor)
[00:17:59] That is a bit different :)

Guest (Customer)
[00:17:58] ok
[00:18:04] its multiple choice

Nancy S (Tutor)

Guest (Customer)
[00:18:22] the directions say
[00:18:35] find the range of the following relation:
[00:18:56] (-1,-1,1,1,2)
[00:19:04] (-2,1)
[00:19:18] (-1,1,2)
[00:19:31] (-2,-2,1,1,1)
[00:19:32] ok

Nancy S (Tutor)
[00:19:55] Here, it's still a question of range.
[00:20:01] Is range about the y values or the x values?

Guest (Customer)
[00:20:34] y
[00:20:38] values

Nancy S (Tutor)
[00:20:51] Right! And what y values are used in this graph that you made?

Guest (Customer)
[00:21:14] 2,1,-1
[00:21:15] ?

Nancy S (Tutor)
[00:21:21] You got it!!
[00:21:34] Good job!

Guest (Customer)
[00:21:38] thx

Nancy S (Tutor)
[00:21:43] I knew you could do it. :)
[00:21:53] Well, thanks for coming again! :)

Guest (Customer)
[00:21:53] thx:)

Nancy S (Tutor)
[00:22:00] Who knows, maybe I'll run into you again.

Guest (Customer)
[00:22:12] thx for ur help :)

Nancy S (Tutor)
[00:22:17] You're welcome!

Guest (Customer)
[00:22:17] yeah maybe :)

Nancy S (Tutor)
[00:22:31] Please complete the short survey. I like to learn how to improve from my students' comments!
[00:22:34] Have a great afternoon.

Guest (Customer)
[00:22:40] u too:)