Algebra 2 - Analyzing Quadratic Functions (part 1)

We're the best in the west, as our intro accent suggests. But soon thereafter, we jump into analyzing quadratic graphs and functions in vertex form. That includes transformations such as vertical shift, horizontal shift, and stretch. We graph as well, using symmetry. The last problem is to create an equation of a quadratic function, given the vertex and a point. YAY MATH!
Learning should always be fun and connective. Please visit www.yaymath.org for:
• all videos
• free quizzes
• free worksheets
• debut book on how to connect with and inspire students
• all-in-one math courses that teachers and parents can use, backed by Yay Math energy

[@lunaluvr1234]

when you have finals tomorrow and haven't understood anything in class all year so you watch countless math videos and pray for the best..... wish me luck.....

[@omnipotentwafflegod8061]

thats me right now I have a test that if I fail will drop my grade drastically so studying before hand to pass and get a good quarter grade, last time I studied off of yay math I got a 9/10 on a quiz so this guy is really good.

[@scootmainshortstop8095]

How did you do

[@gloomyloomy]

@@omnipotentwafflegod8061 how did you do

[@omnipotentwafflegod8061]

@@gloomyloomy I got 90%

[@evan.5967]

There is no such thing as luck

[@udaysidhu4666]

You are so much better than my math teacher. I aced my final because of you

[@micahwilliams1453]

Uday Sidhu true my teacher wasnt helping me at all and i wasnt sure if i was going to do well with functions but you helped me so thank you

[@joshuabowen4799]

At the moment, I'm living in Germany as an exchange student and let me tell ya, math does not get easier when someone explains it in an entirely different language. I've got a Klausur (Exam) tomorrow and I'm so glad I found these videos. Thanks for helping a fellow American across the sea.

[@JudePhilips]

hows germany going for you now?

[@AmySmith-dk6jb]

Update?

[@terroristtt7011]

seriously i wish u were my maths teacher everything makes sense now...

[@coolcat1058]

I'm in college algebra and this helps me more than my teacher. Thanks

[@coolcat1058]

@Prem Varun no actual college algebra.... i had parts of it like this

[@coolcat1058]

Idk just what they teach in slow merka

[@coolcat1058]

@Prem Varun lol

[@golfjuliette9687]

I am Haitian 🇭🇹 I really like how you teach You’re an understanding teacher.

[@renaestubbs1903]

You are like a total angel. Doing math at midnight (when kids are sleeping lol) and finally I understand. My Aleks program was absolutely not getting through to me. Thank you.

[@yaymath]

Renae, what a massively wonderful thing of you to say. It’s a huge honor that Yay Math add value to your life. You’re invited to check out the website, Yaymath.org, where my personal mailing list is, and please feel free to sign up. All messages are direct from me.

[@sc7836]

You may be the best in the west. Truly entertaining class. And very good delivery and explanation. Thanks- subscribes.

[@robertahdoot]

Best in the WEST! C'mon, that's so nice!

[@brozforbroz5671]

I literally wasn’t working on this but the simple explanations in the beginning of the video helped tremendously, Thank you!

[@melross5617]

Great lesson. Love your since of humor. Captures the students attention and keeps them focused. Thank you.

[@TallManManny]

Thank you so much for these videos ! Honestly you are an amazing teacher and you have saved so many grades ! You have been so helpful ever since I was in 8th grade ! Please never stop . ~ Tall Man Many

[@vergohbeats]

YAYMATH IS BACK!!!

[@nate2748]

10:49 “Remember the term for this, it’s a letter” “ *CONSTANT* “

[@nate2748]

😂😂

[@ema7956]

immaculately done, thank you so much.

[@jordanworld321]

I really appreciate you sharing this. Im going to Ace Algebra!

[@netogaming4048]

You are really good at explaining!

[@Nozarks1]

Best video on the topic. Thanks.

[@ValerieGonzalez-kr2pr]

I have a math test tomorrow and I didnt understand anything until you explained it, thank you so much youre a huge help

[@hansilog2034]

@yaymath keep up the goodwork bro so helpful or even more

[@mamtaneupane]

This really helpful thanks!

[@h.brandon4654]

What if you need to make a t chart with all the points though?for the like f(x)-(x+2)^2 because in your you going the vertex and just drew it how do you know what the other points are ?

[@MomoiPh3G]

You're simply the best! Thank you so much.

[@forrnx.]

best math teacher hands down

[@zorinicolee2417]

wonderful teachings

[@terroristtt7011]

u are so much better than my school maths teacher AND my maths tutor👏👏

[@rnelson299]

I used to be terrible at math. I failed every math test and then I started watching your videos and ever since I understand math and I am passing my tests and I have a B in math. I used to only have D's and F's.

[@blackalgae370]

thank you, I don't know why it wasn't taught to me like this

[@g-sh0t377]

this was verry helpful

[@fadumoali2240]

thank you so much

[@stephannelois6801]

you're really amazing thank you for helping me the day before my eoc !!!

[@MarciaArleneDebra]

9a=-3 You want to solve for a; therefore, you want to get a on its own. You divide both sides by 9 to get a = 9a/9= -3/9 the 9s will cancel leaving the following:- a=-3/9=-1/3.

[@Olavotemrazaodenovo]

Congratulations from Brazil.

[@phiroumlam5609]

Why is (x-3)^2 moving toward positive side and positive moving to negative? I didn’t get this part.

[@yjmahumani1197]

You explain everything clearer keep it up. Yuza John Mahumani.

[@shahidmuhammad6291]

Where and which class?

[@ericrullepa8391]

i love this channel man!!!please upload more videos..😁😁

[@aaah7779]

IT HELPED!!!!! U seem like a good math teacher 😁

[@monoman4083]

good info...

[@Mother_Lol]

What happens if the second no. has an x with it? Like this: y=x^2+4x

[@MarciaArleneDebra]

Teachers should understand why students ask questions. When the student asked "How did you get that" in reference to the 9a=-4; she did not realised that the equation was multiplied, and there was a separation of the numbers from the literals through a transposition. While you are an excellent teacher, sometimes for teaching efficacy, you need to understand that students do not always follow your tacit instructions.

[@giovannip8600]

Nah, the only problem was the one that didn't look like one

[@dinh9584]

Actually in viet nam every students learned this lesson from secondary school, but teacher who not explained about this be like you, so that was a resson the students were so difficult to taka it in

[@abukarmurudimumin253]

This lesson has been difficult for me, but I could solve it other ways: factorization, by completing square and by formula, but I have just understood by graphing!

[@joshnunez107]

This guy is a very good teacher 🔥 🔥

[@wsdm369]

thanks bro

[@jsingleton2202]

Men are the best at teaching

[@jacobtimm1559]

good job

[@garrettludescher9588]

Algebra 2 EOC today... wish me luck

[@aryaijadodson6332]

SwagmeysterGames which school do you go to ?

[@tiernanomahoney8826]

@@aryaijadodson6332 shut up pervert

[@nate2748]

How’d it go Garrett?

[@Ali-ibn-e-Ahmad]

How to solve this problem in quadratic equation y=x^2-2x-15. What are coordinates of the vertex of the parabola? where to apply this formula -b/ 2a any help is appreciated.

[@jerrydolph8339]

ALI fazal I'm not really good with math, but I think a=1 and b=-2.

[@lukes2219]

What does the ^ mean

[@Deez_Nubz]

You are correct about -b/2a part. But that is for only finding the vertex. So for that equation -2 would be b and 1 would be a. So if I am correct that should equal to 1. Now plug in 1 to x^2 -2x-15. 1^2 -2(1) -15. So the vertex is (1,16). Now you need two x-intercepts. You can use the quadratic formula but the easiest method for me would be the "complete the square" method. What you do is you factor the x^2-2x-15. I believe that comes out to (x-5)(x+3). What you do is have them equal to 0. So for example it would be x-5=0 and x+3 = 0. So your solution set (5,-3). So you have two x intercepts now. The last thing you need is a y-intercept. All you have to do is set x as 0. So 0^2 -2(0)-15. The y-int is -15, so all you have to do is plot the points. I hope this helps you even though you posted this a year ago

[@ema7956]

its -b/a not -b/2a it works when you are finding the sum of roots of a quadratic equation.the roots of the above equation are -3 or5,

[@ema7956]

-b/a is used to find the sum of roots without solving the quadratic

[@anoyingvoice2638]

I'm doing my math gsce on monday. Wish me luck! Ahhhhh

[@ahokhattab]

How’d it go? (a year later)

[@redenggaliendo169]

yeah,ur a very good teacher,,im satisfied the way u discussed,,,ur so funny as well,,making studnts feel alright,,can i be the one of ur student,,??pls ,introduce me in ur clss!!hehdehd!! i keep on watching more of ur videos,,,thsnks,,bro!!#philippines

[@redenggaliendo169]

#yaymath

[@seansundae9553]

Finally, I understand quadratic function.Thank you.

[@Mohitchaudary006]

#yaymath

[@tally7018]

i don’t even care abt the math, u free on saturday night i’m tryna make 1+1=2 bABAY

[@AmazingClips13]

i want him as my math teacher

[@s_xi1]

Me looking at the comments saying they took this in college WHEN IM JUST A 9 GRADER TAKING THIS NONSENSE wth

[@PedroGarcia-tz3lr]

YAYMATH!!!!!!

[@augustayarteh7524]

That shape is a parabola shape that the first shape right up, the vertex is 0, 2 sound explanations. Let me learn more of this work. I don't want forget the steps of those work

[@galacticfox3582]

yay

[@melaikaradtke231]

i love how he teaches. And Im a college student lol

[@giovannip8600]

No offense but how did you get to college without this?

[@joaquinmijares5462]

guess whos back back again

[@andrepetrov9168]

is this a senior high school class?

[@kraggi13]

Andre Petrov at least for me it’s a 9th grade algebra 2 cp class

[@embrproductions]

8:15 there's someone who whispers "shit" lol

[@Nutrision]

OBSERVE! QwQ

[@sunny.n9317]

[@frostypawsgaming1338]

Hmmmmm. I don't know why. when i see y = (x+2) i instantly think of factoring.....

[@OkOk-ku5hu]

Kristopher Guillaume it's x squared when u factor

[@lukes2219]

Ok Ok ?

[@user-ht1se6pf6d]

Kristopher Guillaume ت

[@jean-jacquesiragena7673]

I need help, this shit can't get in my head😔and i need to know it? Anyone?

[@lukes2219]

J_youngen SJ what do u need help with?

[@reynadelacruz5851]

YES🥵

[@davidpsackie2588]

First of all,thank you very much for the time but you are trying to be good.

[@ragedragon33]

this is the 100th comment

[@mastermike8053]

why can't u be my teacher

[@oneilstewart9381]

funny stuff he is doing don't anyone agree

[@andrezalsante239]

I've watched two of your videos and still don't know what you're talking about man.

[@RyanTaylor-oi7xk]

(We all need to) Repent, for the kingdom of Heaven is at hand. Jesus is coming ⏳⌛️. If we confess our sins to God, He is faithful and just to forgive us our sins.