Determining the quadratic equation given a vertex and a point
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- Опубліковано 20 вер 2011
- 👉 Learn how to write the equation of a parabola given three points. The equation of a parabola is of the form f(x) = ax^2 + bx + c, where a, b and c are constants. Since, the equation of a parabola has 3 constants, three equations and hence three points are needed to solve/obtain the equation of a parabola.
Given three points on a parabola, we use the standard form of a quadratic equation to set up a system of three linear equations which we solve to obtain: a, b, and c and hence, the equation of the parabola.
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✅Write the Equation of a Quadratic
• Write the Equation of ...
✅Write the Equation of a Quadratic Given Vertex and a Point
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✅Write the Equation of a Quadratic Given Three Points
• Write the Equation of ...
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You know that liberating feeling when you finally understand something because someone can actually explain it to you in a way that makes sense...that's the feeling I'm getting right now! Thanks for this video!!!
I love that feeling, happy to be able to assist you!
It's 11 at night and my assignment is due at 11:59, I couldn't understand this at all, and i then found this video and I was 5 seconds away from turning off my phone and just putting in random numbers and I'm genuinely grateful for this video.❤
haha I make two types of videos, ones in class and ones to the camera after school. This is a video during class hence not looking too much at the camera
I don't understand why you put x^2-4x+4 instead of x^2-2x+4
@@raveenabarlapudi6117 (x+2)^2
=(x+2)(x+2)
=x^2+2x+2x+4
=x^2+4x+4
I don't know can my answer help you since already after six month
@@poplolly7780 correct except in the video it's (x-2)^2 not (x+2)^2 xd
It may have been 8 years since this video was posted, but I want you to know this video is still amazing!
now 9 lol and you right but im stuck in 2008
10 years*
almost 11 now
12 now and still explains it better than a whole 1 hour lesson from my HS teacher
now 12
Ayeee, everytime I be strugglin in Algebra II, this man right here is ALWAYS ma savior
It's crazy just how easy and straightforward you can make it. I have had teachers who have taught the generation before me and you are still able to explain it 100x better than them. Thank you!
good teacher.
happy to help
it takes a time to understand things, don't worry. happy to help!
literally watching this in the middle of a test. online classes suck but that's one perk of them. Thanks man, super helpful.
GODDD why aren't you my math teacher. I already know most of this stuff because I do an extracurricular math program so I'm way ahead of my class but sometimes I need refresher and this was so perfect my math teacher barely explains it and I can barely remember what I did since it happened so long ago in the math program. I can't imagine what it's like for the kids who haven't seen this stuff yet. thanks anyway man
you are very welcome! happy to be there for you
Don’t break the 3rd commandment
Just a correction, f(x)=ax2+bx+c is standard form and f(x)=a(x-h)^2+k is vertex form. Not the other way around. Otherwise, very helpful. :)
indigomorningx that is correct, sorry if I misstated that in the video
umm... I was taught that f(x)=a(x-h)^2+k is standard form and f(x)=ax2+bx+c is "general" form? Could you clarify?
indigomorningx is correct what you were taught was wrong
Thank you! I looked FOREVER to find a tutorial on this, even khan academy didn’t have this, your a life saver!!
happy to be able to help!
Been coming to you because online school is hard
your students are very lucky to have you.
I can’t express how much of a life saver this video is.
The was amazing and the student correcting him made me feel like am in a real class
yes, thank you, probably a slip of the tongue. thank you for letting me know, I really appreciate it
Thank you so much. I like my teacher, but he has a much more right brained way of doing things that doesn’t go well with my logical, left brained strategies for math, and the straightforwardness of this video really helped me. Thanks so much…
This helped me feel more confident in taking my quiz today!
Thank you so much! This made doing my homework so much easier.
Thank you very much! This helped me a lot especially since i missed a week of school so i couldn't understand anything that was going on. Keep up the tutorials please! Thanks!
happy to be there for you to assist you with your work
Can you also plug in the numbers for the vertex, or would you get a different result?
Thank you so much for this! My teacher ran out of time to explain this but we're still expected to know it for the test, so this made it really easy! Thanks a ton!
you are very welcome! happy to be able to assist you
THANK YOU!! I forgot how to do this and had been looking for tutorials until I came across yours. Huge thanks.
+Konundrum you are very welcome! happy you found me
Thank you so much for this, it help me so much :D
Today is my final test and I'm watching this two hours before the test... This is very helpful!
awesome, glad to help
I have to retake a a algebra class to get into a higher class. what would you recommend to study?
Tay Not sure if I can direct you to exactly what you need, I have 4 years worth of Algebra 1 videos for you but not sure if there are specific videos that will help you more that others
happy to help!
Thank you for this! There are very few tutorials on this topic, thank God I found this channel!
Happy to be able to help!
The absolute GOAT at teaching
Appreciate it!!
Thank you very much
I wish I had a teacher like you
I just have to say thank you SSSSSOOOOOOOOOO much, I was getting stuck on how to turn the final function into the quadratic function!!! Thanks to you I know what I am doing now.
you are very welcome!
Thank you!! Now I finally understand what my teacher's been saying in class.... sigh... I need my teacher to teach like this! ^-^ nice job!
Thank you! My math teacher likes to give out reviews at the end of the year and this completely left my brain.
understand, happy to help
Thank you for making this so simple to understand!
you are very welcome! happy to be able to help
thank you
Very helpful for my math project!!! Thank you!
This video helped me so much on my test! Thank you
Missed a week of school , had no clue how to do this but this helped a lot ,thanks
This video is just it👏🏽👏🏽👏🏽. Thank you 🙏
Wow!Thank you very much. Your explanations are really easy and now I figured out how to solve my math exercises.
awesome! happy to be able to help you out!
Thank you,it was very helpful
happy to assist you
This video saved my ass, my math teacher doesnt let us take notes in class and I got a review today for a test and Ive been looking for videos for about 5 hours now and this is the best one by far. Thanks for all this help and youre one amazing math teacher my dude
you are very welcome! happy to be able to help you out!
I am really thankful to you for all your earnest efforts taken to teach math in such a magical way, it helps many who can't pay for personal tuition classes. Hope you will continue your kind & generous efforts going on.God Almighty will certainly reward you.
hey dude u still use UA-cam after 9 years?
@@Danstry he probably doesnt
Still alive?
from Philippines
my mother and i are learning😍
thank you sir🙏
thank you for posting these examples. don't know if you're still monitoring this, but did you mix up the form names when you said them at :16? Isn't f(x)=x2+bx+c standard? and f(x)=a(x-h)2+k vertex?
hello i hope you please respond! im taking dual credit college math and there is a problem but it is given me x intercepts and a y interept, no vertex. how will i solve?
You just taught me what took my teacher a week to explain in 5 minutes, and did it better than her. Amazing video! :D
Wish you were my pre-cal teacher! you seem so chill lol, helpful video too
+Kareem Sasa teaching pre-calc this year, so keep a look out for new videos uploaded daily
I’m a calc 2 student reviewing for an SAT, and I forgot this material; thanks for the help! 😅
Simple, and to the point. very good math teacher
happy to help!
Hello if i was just given the minimum point and was told to find the equation, how do you do this?
This helps a lot! Thank you for this great video!!!
you are very welcome!
This actually helped me. Thanks
Ugh thank you I never understand my teacher &’ I understood a one week lesson in a 5 minute video !
This man is the only reason i am passing math rn 🙏🏼
This guy has helped me more in math than my actual teacher
Thank you for saving me!
Thankyou!! This was very helpful! :)
Math has never been clearer, Jesus man..Will you be my teacher.?
Don’t break the 3rd commandment. Taking the Holy name in vain.
@@mathewsbiju3251 im atheist suck it
@@mathewsbiju3251 jkjk you have a nice day
thank you! This was very helpful :)
awesome! happy to help you out
Good sir, I'm really confused coz I thought it would end up like the standard equation (x-h)^2=4p(y-k)
Dang! You are really good at explaining!! I feel so relieved now. I got this!! Woo!! thank you again!
happy to help!
Why is it that in class this makes no sense, but when I go to UA-cam it all becomes clear....
XD
Happy to be able to help you out!
Do your students take their test/quizzes/homeworks through Pearson(MathXL)? Im trying to figure out how your videos go along so perfectly with what im learning now.
no, older videos follow a book sequence, I now create my own content
Excellent effort.
Thank you for this! I needed a lot of help for my upcoming test lol
Happy to help!!
How do you graph in intercept form for parabola when only 2 x intercepts are given
This really helped but for the record our math teacher started making us do this and we are in Algebra 2 but its fine. Great and helpful video!
that's good! I taught in Algebra 2 as well. Keep up the hard work
You slayed omg just saved me for a math analysis quiz
thank you! this really helped me out
glad to hear, you are very welcome!
Thank you!!
Very clear! Thank you!
you are very welcome!
This helped me more than my teacher trying to explain it 😂 thanks I really needed to get this test done since I have a test tomorrow
sir, how are these formulas related to
(x - h)² = 4p (y + k)²
and
(y - k)² = 4p (h - k)²
what if i'm given the value of the y intercept, and two points the parabola passes through? For example, y int = 13, points are (5,8) and (-2, 10)
+Rav3nGaming you will need to use a system of three equations for standard form of a quadratic y=ax^2+bx+c make three equations using the different x and y values for each point. Then solve using elimination of three equations
Thanks, this really clarified things !
happy to be able to help
thanks... you just saved my daughter in her test tomorrow
Is the vertex the same as a turning point?
18 mins away from my quiz thanks dude
Thank you so much! My math teacher really appreciates you and your work! Keep doing what your doing, your going places✈️🥰😉
Man thanks a lot. My teacher wanted me to write in quadratic form. thans
you are very welcome!
thanks for teaching me.. im actually a 7th grader and my teacher taught us this in Advance Math
Thank you much you helped me I will NEVER forget your help
happy to be able to assist you!
You are the man Brian.
How do you write it straight to the quadratic form without finding standard first? Do you have another video for that?
e3102bete you need to find the equation in vertex form first then you can rewrite it in standard form
Thank you so much. You’re amazing
Thank youuuu!!
Bro this channel is the only reason i'm passing precal 11 😭
Thanks for the explanation! How do you find another point of quadratics if you only have one point (x,y) and h.
not sure, you have two unknowns a and k, will need another equation to write or additional information imo
What if I wanna find the value of a b and c
omg this just saved my grade thank you so much
So helpful! Keep making vids
Nick Biedermann be happy to nick, keep working hard!
What if the X coordinate of the vertex is 0?
Thank you sir
What if in the graph form, the line's a straight one and the only givens are the x and y (-3,9)? How to find the quad equation for that problem?
I assume similar process to this video unless there is something i am missing
The problem says: Find the appropriate values of a, b, & c according to the graph. The graph only shows (-3,9). I tried to solve it by how you did and I got a=1, b=0, & c=9. The answers, however, were a=0, b=3, & c=9. I don't get how it resulted to those answers.
You’re a legit lifesaver.
Thanks. Really helpful
***** you are very welcome! happy to help
This was so helpful. 🙏🙏🙏🙏
+Daniella Moreno sweet! happy to help
Thanks for helping! I always have trouble remembering lessons 1-2 weeks after they pass...not to sound ungrateful or anything, but you should try looking at the camera if you can! I felt awkward looking at the video even though you weren't right there! Thanks again!
haha totally understand. I do not look at the video in my classroom videos because I am teaching to the class but recording myself. I also make videos where I teach to the camera without any students.
Yeah, sorry. I noticed that right after I commented when a girl asked some questions! Please disregard my comment, their education is important then some minor discomfort when watching a UA-cam video. I did awesome on my Algebra test today because of you though!