College Algebra- Graph Parabolas-VideoMathTeacher.com

[WhatThePresidentSays]

HAHAHA, im getting this in 9th grade.

[t3hownzer]

this can't be college algebra o_o i'm getting this in precalculus in 12th grade

[Macdaddy039]

Forget this retarded textbook videos over youtube are where its at!!!! Thanks for the vid this helped me pass my exam!

[InuMS]

College , I'm studying this in 9th grade .

[amc0100]

@InuMS this makes you cool right?

[Gameplay946]

if the equation is a^2 - 25 = 0, the B would be 0 right? since there is no B? and x will become 0 as well?

[whitewolf96wagar]

i need big help on y= -3x^2-9x+30..... how can i solve this?

[halo3fan18]

I'm learning this is 10th grade algebra I -_-

[dragonsgc]

are you serious????? I am learning this in 7th grade but then again, I go to a private school

[ThrustRC]

yeah, this is in collage? im learnin it in  8th grade

[90angelface]

@ThrustRC Sadly, it is. They teach you this in a more confusing way so you THINK it's a super difficult class until you youtube it and remember learning it in 8th grade.

[tanmyman777]

Is this seriously college algebra, this is junior high 7th grade algebra

[memphisballin15]

do i really have to make a table like the x and y? or is there a shortcut to this?

[GirliWillCutYouNow]

I need help understanding y=(x+1)^2+3

[MrGrimrapper]

Thanks this really helped

[Jarrodmontelius]

ty!

[speedwagen23]

this was sooooo helpful!!! i did this last year, but over the summer i completely forgot what to do :P THANKS !!

[esca8652]

Thanks man!! This shit really helped me! I had already known how to find the vertex, but the other points I wasn't sure about. This will help me greatly with my exam.

[chelseafcfanisy]

Thanks to you, I'm going to get a good mark on my quiz tomorrow. Thank you so much.

[UnsoundAncient]

y=(X+2)^2+1

whenever i do this im ending up with really high numbers. all im doing is plugging 3 where X is and im coming out with 26. Is this right? it seems so high

[kloosterboe2]

Thank you, i have just come from England and now i go to an American High school and i dont understand a lot well in math and well this example is what i have been taught in my Enlgish high school, argggg American High school make things so confusing

[thisonedude678]

Thanks for the video, I'm used to straightforward instruction, really helped me understand instead of an 1 hour long class just to learn this

[pana304]

Yo thanks a ton your very direct and clear in what your teaching thanks cause now I understand 5 stars for u my friend

[sarahflem2000]

Thank you for making this for all the students who have terribly confusing teachers. This is so much more simple than what my teacher made it sound like.

[psuman444]

very helpful for my exam, thanks

[kiwicaz]

thanks!

[ArkansasItalianBoy]

I need help understanding

y(x)=x^2+4x-3

What do I do with the 4x?

[thegarydavis999]

Well, I'm not sure what your question refers to, but most of us would say something like "complete the square"? If so, divide the middle coefficient by 2 and square the result, the BOTH add and subtract the result.

So, y(x)=x^2+4x-3

y(x)=x^2+4x+(4/2)^2 - (4/2)^2 -3

y(x)=x^2+4x+2^2 - 2^2 - 3

y(x)=x^2 + 4x + 4 - 4 - 3

(factor the first 3 terms as a perfect square trinomial)

y(x) = (x+2)^2 - 7

So, if you were looking for the vertex it's (-2,-7) and goes up. Check out more at my website

[IIXXIIXX]

That was really helpful for my summer homework

[xxAFSOCxx]

I also wish you were my teacher jaja this vid is awesome thank u so much!!

[blazist]

Finally, i wish you were my teacher hhahahaha. teachers at school are so confusing!

[dave93vert]

he mentions its a ti-83, i would look for it online or on peer sharing networks.

[thegarydavis999]

Thanks much! My only hope is to help everyone understand mathematics better.

[landbond007]

nice handwriting! ^^ awesome vid!! thx!

[perfectperfecto]

Thanks! Finally a great vid on youtube on graphing parabolas! :D 5/5

[kiwicaz]

i completely agree!

[THEgiftedperson]

How did you get that graphing calculator on your computer? that would help me out a ton!