Question

Hi, Anyone know Pre-Calc? I could use some help.

Answer 1

what specifically?

Answer 2

what is it?

Answer 3

Yeah. You have to know what you need help with so that people will know how to help you. What is it about pre-Calc that's giving you a problem?

Answer 4

Okay I need to know how to identify the graph of the equation x^2 + 3xy+2y^2-3x+2y+10=0 then find theta, the angle of rotation

Answer 5

I know that it is a Hyperbola

Answer 6

So i just need to know whether the angle is -36 or 36 and how to tell

Answer 7

Okay, well, we know that pre-Calc is basically a review of Algebra and Trigonometry classes, only a bit tougher. And, they introduce limits don't they?

Anyway, that's an interesting equation you have their, but I don't get how you can find an angle of rotation from it. Someone help ME out.

Answer 8

Yeah ditto that is why I am stuck

Answer 9

That's the entire problem? Really? You sure?

Answer 10

here I will upload a snapshot

Answer 11

Okay. That'll help.

Answer 12

Okay. Got it. Do you have Microsoft Word?

Answer 13

yes

Answer 14

Great. Do you have the free plug-in Microsoft Math?

Answer 15

no? is that part of Microsoft word? or a separate program?

Answer 16

I'll walk you through installing it, if you have time. It's a great add-on.

Answer 17

Okay I am installing it now :)

Answer 18

Cool. It'll really help with all these problems. I mean, you know, help people talk about it with you.

Answer 19

shoots. Unfortunately I cannot download it

Answer 20

Actually, I just started mine, and I realize there are two features. One works directly with Word, while the other is a graphics calculator that works independently (don't know if someone has to have Word for the Calculator to work.) But it's called Microsoft Math 4

Answer 21

I'll help

Answer 22

Okay

Answer 23

http://www.microsoft.com/en-us/download/details.aspx?id=15702

That's the page you'll find it on. Just click the download icon. If it doesn't download, you might not have an up-to-date computer set up.

Answer 24

Okay it is installing through the wizard. I have an up to date computer with windows 7 os on it. I just have a weird version of word lol

Answer 25

:) Okay. Once you get it installed, you can find it in your programs location. I usually place a desk icon or some other easy to find place for something I use a lot.

Answer 26

okay cool. It is starting up

Answer 27

k.

Answer 28

okay it is up now

Answer 29

what do I do?

Answer 30

I placed it in mine, but I didn't have it equal zero, so I ended up finding a 3D graph, which isn't going to help (me anyway). Let me place it in again.

Answer 31

okay

Answer 32

Do you have your equation in? If you type it in on the keyboard, you need to use the carat key. Know what that is?

Answer 33

I just copy pasted?

Answer 34

so yes i do :)

Answer 35

Okay

Answer 36

What did you get?

Answer 37

a very long equation

Answer 38

Yeah. Me too. :(

Well, we can find the answer.

Answer 39

Okay

Answer 40

What I have is a minus x AND a minus y

What about you?

Answer 41

I mean the answer has a minus y and a minus x (negative) Know what I mean?

Answer 42

no i have a

Answer 43

whatever that is lol

Answer 44

How did you get the image on here? I'd like to know how to do that.

Answer 45

okay so you have a snip tool on your computer (if you have windows) just type snip tool into the windows search when clicking the windows button the the left had bottom corner of your scrreen

Answer 46

Okay

Answer 47

click on the snip tool then click new. draw a box starting in the left corner to the right. a window will appear with your image, click the save button that looks like a floppy drive and then decide where and under what name you would like to save it

Answer 48

then click save. now go to the attach file button under the window that you are typing in to chat. you can search for you file under the name by using the upper right hand search box in the window that pops up. click on the file. then click open. then post. wala :)

Answer 49

Okay. Got it.

Answer 50

yay

Answer 51

Here's what I got for an answer. This is important.

Answer 52

In that case wouldnt it be -36?

Answer 53

I'm a math student, just like you. So, I think the way to find the answer is to know which quadrant the minus is in, right? Is that how you came up with -36?

Answer 54

okay. yes. and I guessed on the -36 based on what the point look like
I am going to try graphing them

Answer 55

Okay. When I tried graphing it in 2D, I didn't get a viewable graph.

Answer 56

yeah it will not let me graph that

Answer 57

http://www.purplemath.com/modules/synthdiv.htm

Answer 58

^that is another equation solver

Answer 59

Alright well I think we are stuck, my teacher said he would get back to me tomorrow with how to do it so I will post the instructions on here if you are curious of the result?
Anyway thank you for your help, and for showing me the math program :)

Answer 60

Thanks for letting me know about that plug-in.

Answer 61

That's the problem with classes. Here, we learned a bunch of stuff, but we aren't certain of the answer.

Anyway, do you want to keep in touch with the math problems?

Answer 62

Yes. I'm curious about the result.

Answer 63

kay