Equations with parenthesis?

bobbym · 2010-10-20 09:43:03

That is very good only one thing is not quite done. Do you like that 2 / 4 ?

misheeru · 2010-10-20 09:44:23

No, not really. Can we reduce it or something?

bobbym · 2010-10-20 09:46:04

That is what I am getting at. Does something go into the top and the bottom?

misheeru · 2010-10-20 09:48:46

Yes. 2 goes into both.

So we can reduce it to 1/2

So y = 1/2x -3?

bobbym · 2010-10-20 09:52:18

Yes:

That is slope form. So I ask you what is the slope of that equation?

misheeru · 2010-10-20 09:58:30

1/2?

bobbym · 2010-10-20 09:59:30

Yes, you just have to match it up with the m in y = m x + b. Now what is the y intercept?

misheeru · 2010-10-20 10:10:14

the -3?

bobbym · 2010-10-20 10:12:30

That is right!

The y intercept is the place where the graph crosses the y axis. How did you figure it?

misheeru · 2010-10-20 10:27:35

I actually just figured that since the -3 we used originally came from the y side... yeah it was more of a guess.

bobbym · 2010-10-20 10:33:29

Okay, here are two simple ways.

1) Look at your graph. See that the point (0,-3) crosses the y axis at -3? That is the exact definition of the y intercept.

2) Take and plug in x = 0 into the equation you got.

Sarah Rebekah 13 · 2010-10-20 13:21:07

What are you guys Talking About?

bobbym · 2010-10-20 18:03:21

Hi Sarah Rebekah 13;

That is a good question. It is called coordinate geometry and was invented by the great Rene Descartes, Misheeru is learning to plot functions and to undestand them.

More simply we are drawing straight lines on graph paper and looking at them.

Sarah Rebekah 13 · 2010-10-21 03:56:19

Ok I went Fishing With my Family Wedesday we Got some Nice A guy Gave Us Some Nice size Bass We are Going to have Fish Today For Dinner.:cool::cool::cool::cool::cool::cool::cool:

Sarah Rebekah 13 · 2010-10-21 03:57:34

some nice Fish I mean.

bobbym · 2010-10-21 11:31:08

Hi Sarah Rebekah 13;

How was the fish and did you save me some? Do you help cook it too?

Sarah Rebekah 13 · 2010-10-22 02:26:43

Well my mom Change her Mind About cooking the fish Yesterday.

bobbym · 2010-10-22 05:33:29

Okay, think she will cook it today?

misheeru · 2010-10-22 05:44:14

bobbym wrote:

More simply we are drawing straight lines on graph paper and looking at them.

Your forgot one key part of that definition, here:

More simply, we are drawing straight lines on graph paper, looking at them, and giving ourselves headaches.

bobbym · 2010-10-22 05:49:05

Yes, that too. Head feel better?

misheeru · 2010-10-22 05:54:19

HAHA! No. I woke up with a bad one, and my meds are in my parents room and my dad is sleeping, so I will have to suffer or go to sleep until he gets up. I don't even have my nausea meds with me, ans thats the worse part right now.

Is it just me? Or are computer screens excellent headache amplifiers?

~ending annoying complaint session.

Anyways, how are you?

bobbym · 2010-10-22 05:58:00

They may be. Stare at them straight on. Make sure there is no glare. Adjust the contrast and gamma for your eyes. Make the fonts bigger. Rest your eyes frequently by walking around for 5 or so minutes.

I have been better.

misheeru · 2010-10-22 06:02:59

Thank you. Unfortunately, my new school computer is a Dell Inspiron Mini, which I love, but it is horrible to look at it when my head hurts. I'm going to try to turn down the brightness a bit. And I can't even concentrate right now.

I'm sorry to hear that. Whats up? Anything you wanna talk about?

bobbym · 2010-10-22 06:03:53

Right pod damage!

misheeru · 2010-10-22 06:06:52

Pardon? What do mean by "pod"?

Math Is Fun Forum

#301 2010-10-20 09:43:03

Re: Equations with parenthesis?

#302 2010-10-20 09:44:23

Re: Equations with parenthesis?

#303 2010-10-20 09:46:04

Re: Equations with parenthesis?

#304 2010-10-20 09:48:46

Re: Equations with parenthesis?

#305 2010-10-20 09:52:18

Re: Equations with parenthesis?

#306 2010-10-20 09:58:30

Re: Equations with parenthesis?

#307 2010-10-20 09:59:30

Re: Equations with parenthesis?

#308 2010-10-20 10:10:14

Re: Equations with parenthesis?

#309 2010-10-20 10:12:30

Re: Equations with parenthesis?

#310 2010-10-20 10:27:35

Re: Equations with parenthesis?

#311 2010-10-20 10:33:29

Re: Equations with parenthesis?

#312 2010-10-20 13:21:07

Re: Equations with parenthesis?

#313 2010-10-20 18:03:21

Re: Equations with parenthesis?

#314 2010-10-21 03:56:19

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#315 2010-10-21 03:57:34

Re: Equations with parenthesis?

#316 2010-10-21 11:31:08

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#317 2010-10-22 02:26:43

Re: Equations with parenthesis?

#318 2010-10-22 05:33:29

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#319 2010-10-22 05:44:14

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#320 2010-10-22 05:49:05

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#321 2010-10-22 05:54:19

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#322 2010-10-22 05:58:00

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#323 2010-10-22 06:02:59

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#324 2010-10-22 06:03:53

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#325 2010-10-22 06:06:52

Re: Equations with parenthesis?

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