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Converting a Quadratic Function From Standard Form to Vertex Form (Completing the Square)
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- Опубліковано 18 сер 2024
- Learn how to convert a quadratic function from standard form to vertex form by completing the square. We will go through 3 examples of increasing difficulty to help you learn this concept. We are taking the standard form of y= ax^2 + bx + c and transforming it to y=a(x-h)^2 + k.
Jump to Part of the Video:
0:27 Example 1: y=x^2 + 6x - 8
2:20 Example 2: y=2x^2 -8x + 1
4:48 Example 3: y= -(1/2)x^2 - 4 + 3
Related Videos to Help You Succeed!:
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What I like most about your teaching method is that during the lesson you point out where students often make mistakes (and I do make these mistakes all the time) and it helps a lot to know. Thanks.
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I was stressing for a big test coming up and this was a big concept I did not get. Now I completely understand. Thanks!
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LOVE YOU!!! MARIO OMFGG I MASTERED CONVERTING TO VERTEX FORM !!!!!!
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excuse me sir is it ok if i write f(x) as Y in a quadratic function?
its the same thing
The people who put thumbs down liked this video so much they flipped their screen upside down to thumbs up again.
can i ask how if the question is f(x)=x2-2x-2 how do i factor (x2-2x)2 2 cannot be factored
i wish you reply to my comment
hi sir can we also do it by instead of completing the square using x cordinate of the vertex formula plug it into function and get y cordinate of the vertex and plug those values into y=a(x-h)^2+k ???
I am stuck. My equation is f(x)=3x^2+18x+21
So have to divide 18 by 2 which gives me 9 and then I have to divide that by 2 and then square that but I get a decimal. I dont know how to go about that, if anyone could help me that would be great.
Ella...first step subtract 21 to other side of equation. 2nd step factor out 3. 3rd step complete the square by taking half of 6 and squaring it. 4th step add not 9 but 27 to the other side (3 times 9)....hope that gets you started...
At the end of example 3, what happened to the +16
I have a test in 5 minutes LMAOAOAO im so fucked.
What ended up happening
@@itsmenala9087 considering i did this two years ago and i was in algebra 1, i just recently passed algebra 2 with a 91. so i think i passed LOL
what if the equation is x=-(y-4)(y-1)?
5:30 i’m still confused on how he got +8x right here
-4x divide by -1/2 = 8x
I’m crying. Maths is hard. I’m tired.
Edit (1 day later..): Omg thank you very much I finally understood this, thank you I love you
What happened to 16
u shouldve done an example where the x is negative
This DID NOT help.
What part was not helpful? Maybe I can direct you to another video that I have that is more along the lines of what you are looking for?