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!
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[@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

[@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.....

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There is no such thing as luck

[@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.

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hows germany going for you now?

[@AmySmith-dk6jb]

Update?

[@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

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Idk just what they teach in slow merka

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@Prem Varun lol

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

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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.

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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.

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

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

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

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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

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

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

[@nate2748]

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

[@nate2748]

😂😂

[@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.

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

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Algebra 2 EOC today... wish me luck

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SwagmeysterGames which school do you go to ?

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How’d it go Garrett?

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How’d it go? (a year later)

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

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

[@Nozarks1]

Best video on the topic. Thanks.

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

[@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.

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

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

[@monoman4083]

good info...

[@ema7956]

immaculately done, thank you so much.

[@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

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Men are the best at teaching

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#yaymath

[@seansundae9553]

Finally, I understand quadratic function.Thank you.

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[@Mother_Lol]

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

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

[@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!

[@Olavotemrazaodenovo]

Congratulations from Brazil.

[@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

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wonderful teachings

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this was verry helpful

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This really helpful thanks!

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thank you so much

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i want him as my math teacher

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

[@andrepetrov9168]

is this a senior high school class?

[@kraggi13]

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

[@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

[@s_xi1]

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

[@phiroumlam5609]

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

[@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 ?

[@تَعَلَّمْوَعَلِّمْوَمِنْگُمْنَ]

Kristopher Guillaume ت

[@shahidmuhammad6291]

Where and which class?

[@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 ?

[@jacobtimm1559]

good job

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

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

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

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J_youngen SJ what do u need help with?

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