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Graphing parabola from quadratic in factored form

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  • Опубліковано 2 кві 2017
  • Graphing parabola from quadratic in factored form

КОМЕНТАРІ • 80

  • @Farah_Amjad_03
    @Farah_Amjad_03 4 роки тому +168

    I literally sit in math class for 90 minutes confused every second. I go to UA-cam, search up what I need to understand, and know exactly what to do in 10 or less minutes. Thank you for your help..

    • @garrett3848
      @garrett3848 3 роки тому +3

      facts

    • @notmarcus17
      @notmarcus17 3 роки тому +9

      Exactly. My teacher gets mad when you ask for help...

    • @Farah_Amjad_03
      @Farah_Amjad_03 3 роки тому +1

      @@notmarcus17 yeah i know!

    • @notmarcus17
      @notmarcus17 3 роки тому +1

      @@Farah_Amjad_03thank god for khan academy!

    • @richanddarksbane1439
      @richanddarksbane1439 2 роки тому +5

      Math really should be a student paced class

  • @juankim3377
    @juankim3377 4 роки тому +26

    Less than 5 seconds into the video
    My brain: aight imma head out

  • @xbacondreamsx4796
    @xbacondreamsx4796 Рік тому +6

    GUYS: (for the table of values)
    The zeroes (x-intercepts) are when Y = 0, not when X = 0
    SO for example in the eqn. y= 1/2 (x+4) (x-6) you make an x y table of values from -4 to 6, plugging in those values into the eqn. for X
    Then, the y-intercept is revealed as well (0,-12) and the zeros are (-4,0) (6,0)
    Another way to do it without subbing in the -4 to 6 values:
    sub in x = 0
    y = 1/2 (0+4) (0-6)
    y= -12
    and y=0
    1/2 (x+4) (x-6)
    x = -4 or x = 6

  • @corbenary
    @corbenary 2 роки тому +9

    god bless youtube 💀 speedrunning the course two hours before the test 😅 thank you so much, for these!!

  • @deeezznutzzz1619
    @deeezznutzzz1619 6 років тому +44

    I wish that you were my teacher. Because my teacher just shows us power points about math and she only talks to the smart people that have good grades and no the people with worst grade in the class and I'm like gg I'm going to fail math

    • @djt2594
      @djt2594 6 років тому +4

      Yeah same here, buddy.

    • @chickennugget2241
      @chickennugget2241 4 роки тому +5

      Nowadays mostly teachers are like that

  • @shifty1856
    @shifty1856 4 роки тому +9

    very helpful! But I think you overcomplicated finding the zeros. You just have to look in the brackets (x-s)(x-t) and the intercepts will be (s,0) and (t,0) but with opposite symbols

  • @Strwbbe
    @Strwbbe 3 роки тому +5

    better than my teacher thanks

  • @flambow2714
    @flambow2714 3 роки тому +11

    what happened to the 1/2

    • @iiitshala9297
      @iiitshala9297 Місяць тому

      u divide the 1/2 by -16 which is -8

  • @ElectricPeaPlayz
    @ElectricPeaPlayz 5 років тому +17

    I still don’t get this
    😤

    • @rakib17874
      @rakib17874 5 років тому +2

      Did you watch the previous video. This is more of a follow up

  • @annihuang4104
    @annihuang4104 4 роки тому +8

    Thank you! This was very helpful!

  • @GL0WFPS
    @GL0WFPS Рік тому

    Theres a special place in heaven for these people and this channel

  • @lolmglol1013
    @lolmglol1013 Рік тому +1

    me speedrunning math exam the day before the test 💀

  • @troytellez7487
    @troytellez7487 Рік тому +1

    Ever on and on, I continue circling
    With nothing but my hate and the carousel of agony
    Till slowly I forget and my heart starts vanishing
    And suddenly I see that I can't break free, I'm
    Slipping through the cracks of a dark eternity
    With nothing but my pain and the paralyzing agony
    To tell me who I am! Who I was!
    Uncertainty enveloping my mind
    Till I can't break free and
    Maybe it's a dream, maybe nothing else is real
    But it wouldn't mean a thing if I told you how I feel
    So I'm tired of all the pain, all the misery inside
    And I wish I could live feeling nothing but the night
    You could tell me what to say, you could tell me where to go
    But I doubt that I would care, and my heart would never know
    If I make another move, there'll be no more turning back
    Because everything would change, and it all would fade to black
    Will tomorrow ever come? Will I make it through the night?
    Will there ever be a place for the broken in the light?
    Am I hurting? Am I sad? Should I stay or should I go?
    I've forgotten how to tell, did I ever even know?
    Can I take another step? I've done everything I can
    All the people that I see, they will never understand
    If I find a way to change, if I step into the light
    Then I'll never be the same and it all will fade to white
    Ever on and on, I continue circling
    With nothing but my hate and the carousel of agony
    Till slowly I forget and my heart starts vanishing
    And suddenly I see that I can't break free, I'm
    Slipping through the cracks of a dark eternity
    With nothing but my pain and the paralyzing agony
    To tell me who I am! Who I was!
    Uncertainty enveloping my mind
    Till I can't break free and
    Maybe it's a dream, maybe nothing else is real
    But it wouldn't mean a thing if I told you how I feel
    So I'm tired of all the pain, all the misery inside
    And I wish I could live feeling nothing but the night
    You could tell me what to say, you could tell me where to go
    But I doubt that I would care, and my heart would never know
    If I make another move, there'll be no more turning back
    Because everything would change, and it all would fade to black
    If I make another move, if I take another step
    Then it all would fall apart
    There'd be nothing of me left
    If I'm crying in the wind, if I'm crying in the night
    Will there ever be a way? Will my heart return to white?
    Can you tell me who you are? Can you tell me where I am?
    I've forgotten how to see
    I've forgotten if I can
    If I opened up my eyes, there'd be no more going back
    'Cause I'd throw it all away, and it all would fade to black

  • @shhshhmeow123
    @shhshhmeow123 5 років тому +5

    towards the end when you plug in the number for x to solve for y, shouldn't we be plugging in -2 not positive 2?

    • @morningstar..
      @morningstar.. 4 роки тому +2

      i know this is 11 months old but hes plugging in the 2 that is in between the -2 and the 6 because that's the one that's the x axis for the parabola.

    • @itgirlkoo
      @itgirlkoo Рік тому +1

      @@morningstar.. omg thank you I didn't understand why he put 2 lol.

  • @TheFakeTeo
    @TheFakeTeo Рік тому

    This was such a banger. Love supporting small channels ❤❤❤

  • @76Arfa
    @76Arfa 7 років тому +5

    Was here before thumbnail loaded in. I already know the vid os gonna be great. Thanks.

  • @carmelpule8493
    @carmelpule8493 Рік тому

    I teach this by showing students that a parabola is a curve where two straight lines are multiplied together. Hence what is shown as
    (1/2) *( x--6)(x-+2) = y y1= (x-6) is one straight line and (x+2) =y2 is another straight line and the zeros are clearly seen. Multiplying these shifted straight lines will give the full range of the parabola note that + * + = + and -- * -- = + hence both horns of the parabola extend up and out.
    other higher orders can be looked upon as y= (x -a)(x-b)(x-c)(x-d)(x-e) and the products of these straight lines can give the cubic etc orders . Plotting straight lines and multiplying them is a good way of looking after " quadratics "

  • @RafiGish
    @RafiGish 5 років тому +5

    At 4:18 you say that the x value for the vertex needs to be two away from each x intercept point, which should be four since theres a gap of eight between minus two and six ;-)

  • @dyhaeris
    @dyhaeris 8 місяців тому

    u always have a video for what i want but i never can keep up with what ur saying, u make it sound much more difficult than others creators

  • @emma-wk4cg
    @emma-wk4cg 4 роки тому +2

    this taught me better than my math teacher ever could

  • @chiarajohnson8660
    @chiarajohnson8660 6 років тому +3

    Nice video buddy! This really helped me save my math mark. Thanks

  • @diyapant9523
    @diyapant9523 6 років тому +1

    It was easy and fun learning with u....

  • @fundamentalsofphysicsnmath4306
    @fundamentalsofphysicsnmath4306 2 роки тому

    Really nice explanation.

  • @Theunreachable777
    @Theunreachable777 4 роки тому +1

    very helpful,thank you

  • @CelestiallASMR
    @CelestiallASMR 3 роки тому +2

    common sense went out the door

  • @CongoAnimation
    @CongoAnimation 8 місяців тому

    Thank you so much!

  • @rileymccoy9493
    @rileymccoy9493 6 років тому +10

    Im still not sure how u guys understand this

    • @jeffhenderson4843
      @jeffhenderson4843 6 років тому +4

      idk if this helps but in the equation y=a(x-p)(x-q) the p and q are the two x intercepts so in others words if its x-2 then the intercept is 2. then you find the midpoint of the two x intercepts to find the x coordinate of the vertex and then you plug the answer of the midpoint back into orginal equation in first sentence above to find y value

    • @rileymccoy9493
      @rileymccoy9493 6 років тому +1

      haha lol whatever helps i guess

    • @rileymccoy9493
      @rileymccoy9493 6 років тому

      No i feel u, i can get like that, where u just want to stop caring

  • @yukikury3193
    @yukikury3193 5 років тому +3

    it was that simple...? boi my teachers actually good this year, i guess i got too distracted since i was pretty upset of my test grade bc i missed a day where we learned a lot messing up my test score

  • @devdesai1089
    @devdesai1089 6 років тому +3

    what program are you using?

  • @montehawkin5668
    @montehawkin5668 2 роки тому

    Do u show compress or stretch on graph in factored form?

  • @DannytheDinosaurDrawer
    @DannytheDinosaurDrawer 7 років тому +2

    Thanks!

  • @sumgraf4720
    @sumgraf4720 4 роки тому +3

    Didn’t put ^ on the end of the porabola you can get marks off for that

    • @hoyboy6150
      @hoyboy6150 2 роки тому

      Sorry where do you put it on the parabola

    • @AHoomanb
      @AHoomanb 2 роки тому

      @@hoyboy6150 late but at the ends

    • @hoyboy6150
      @hoyboy6150 2 роки тому

      @@AHoomanb Oh right like the arrows to say that it continues, yeah I hate that

  • @stevenf5902
    @stevenf5902 6 років тому +1

    This is SO COOL

  • @katherine-oh3rt
    @katherine-oh3rt 2 роки тому

    is 1/2 in this equation a?

  • @JerkyTibbs
    @JerkyTibbs 3 роки тому

    Thanks so much man

  • @genji5675
    @genji5675 4 роки тому +3

    I have a final tomorow

  • @malaikabaig4929
    @malaikabaig4929 5 років тому +2

    Thank u so much! big help

  • @Dgisonline_1234
    @Dgisonline_1234 4 роки тому +1

    How can I find other points to graph?

  • @gurlaalrandhawa8563
    @gurlaalrandhawa8563 3 роки тому

    LETS GOOOOOO

  • @bballwxrld3875
    @bballwxrld3875 2 роки тому

    Khan I love you so mych

  • @marcusaustin9110
    @marcusaustin9110 3 роки тому

    how do you find the 1/2 from the graph?

  • @doguozgen3314
    @doguozgen3314 3 роки тому

    acaba nasıl 1 hafta boyunca anlamadığım konuyu 5 dakikada anladım bilmiyorum

  • @boringbilal
    @boringbilal 3 роки тому +3

    I dislike mathmaticians that introduce useless concepts so we highschoollers have to suffer learning these "algebra" that will have no effect in anyones life. :/

    • @hoyboy6150
      @hoyboy6150 2 роки тому

      algebra is used in most forms of maths, even the division symbol involves algebra where the dots represent the numerator and denominator of a fraction. its also a bit much to say that algebra will have NO effect in ANYONEs life, it's easy to say that it's already affected my career choice. "we highschoollers" have two main subjects that will get us the furthest with careers: English for communication in general, and maths for most careers. For example my mum is currently studying psychology in Uni and a large part of it is graphing.
      you're allowed to dislike it but speak for yourself

    • @juniasdityenbeger4506
      @juniasdityenbeger4506 Рік тому

      I sure wish I hadn't thought algebra was useless in high school as I am studying to be an engineer now and have to retake it, pay attention in class

  • @BasonaterIso
    @BasonaterIso Місяць тому +1

    umm...i am 13 years old and i still don't understand a single word

  • @debjanimajumder9893
    @debjanimajumder9893 6 років тому

    love u sal

  • @ClumpypooCP
    @ClumpypooCP 7 років тому +2

    Lol

    • @coazed5267
      @coazed5267 4 роки тому +1

      Yoo tryna give me your yt acc?

    • @ClumpypooCP
      @ClumpypooCP 4 роки тому +1

      Coazed why would I give you my yt account?

  • @chaneldavis3737
    @chaneldavis3737 7 років тому +4

    Hey

  • @msrikavya9651
    @msrikavya9651 5 років тому

    Why do you equate the expression with 0

  • @stedyhd9076
    @stedyhd9076 6 років тому

    g'day fellas

  • @montehawkin5668
    @montehawkin5668 2 роки тому

    Do u show compress or stretch on graph in factored form?