Parabola Equation Grade 11 | Grade 11 Functions

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  • Опубликовано: 8 окт 2024
  • Parabola Equation Grade 11 | Grade 11 Functions
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Комментарии • 80

  • @ntyfoundation4027
    @ntyfoundation4027 2 года назад +139

    The best maths teacher in RUclips ❤️thank u sir I always watch the ads as a thank u

  • @FXzamii
    @FXzamii 2 года назад +45

    Mr Kevin how much you have helped me these exams is baffling science and Math you are truly a hero for making these free. 🤝🏽

  • @Sunshyne409
    @Sunshyne409 Год назад +10

    3 years later, I'm watching these videos and enjoying them more than anything. You're the only math teacher that actually makes some type of sense. Thank you so much Kevin

  • @aluta.n
    @aluta.n 2 года назад +27

    You’re my fighter😭🙏🏽. This video was so helpful. Thank you.

  • @wittesvuyiswa
    @wittesvuyiswa Год назад +42

    Sir kevin at the first turning point question is it not supposed to be 2 instead of 3

    • @AndileSithole-r7i
      @AndileSithole-r7i 4 месяца назад +6

      Ya bro I thought the very same thing and had to check the comment section

    • @AndileSithole-r7i
      @AndileSithole-r7i 4 месяца назад +21

      My bad I rechecked it and it is indeed 3 because...
      10= 4a-2
      10+2= 4a
      12=4a
      12÷4= 4a÷4
      3=a

  • @Zee107B
    @Zee107B Год назад +16

    I love that you always include practice examples sir it is always so helpful,i usually pause the video and solve it myself and then check if i got it right😊😊 thank you i understand it so well🥰

  • @tamianyahoda2859
    @tamianyahoda2859 2 года назад +45

    Hi,I’m stuck on the solving part e.g. 10=a(5-3)^2 -2
    a=3
    How did you get 3?

    • @muhammedameer3416
      @muhammedameer3416 2 года назад +52

      Solve the bracket first,you'll get 2
      10=a(2)²-2
      12=4a (-2 becomes positive when you take it over)
      3=a (÷4)

    • @Mrs.swaggintonthe1st
      @Mrs.swaggintonthe1st 2 года назад +3

      @@muhammedameer3416 omg thanks bestieee

    • @nkkhumalo9693
      @nkkhumalo9693 2 года назад +20

      @@muhammedameer3416 I literally came down to the comments to look for an explanation 😂💔🔥

    • @mosobudimotloutsi4568
      @mosobudimotloutsi4568 Год назад +3

      I'm getting a better understanding of functions because of you. Thank you ❤️.

    • @sayedamaanally4930
      @sayedamaanally4930 Год назад +1

      @@muhammedameer3416 shot

  • @dr_logical_b3a5t63
    @dr_logical_b3a5t63 Год назад +40

    You honestly don't know what a celebrity you've turned into at my school

  • @apexmva7614
    @apexmva7614 3 года назад +11

    Have maths on Friday
    This video was so helpful thanks

  • @nkkhumalo9693
    @nkkhumalo9693 2 года назад +12

    Thank You for everything. 🔥😭I actually understand things when you explain them. Oh yeah btw you taught me Geometry in one Playlist than a whole 2 Months did. I even told my class about you. 🔥🤝🏼 Thank You Sir. 💯

  • @lamDredd
    @lamDredd Год назад +3

    You're such a hero when it comes to mathematics

  • @angelamkhize9439
    @angelamkhize9439 2 года назад +9

    Your videos are always so helpful, thank you so much!!

  • @vergilsimon821
    @vergilsimon821 2 года назад +5

    These videos are really helpful, thank you so much

  • @lilmiss_ratched
    @lilmiss_ratched Год назад +9

    Hi sir can you please explain how you continued from -2=a(-3+2)^2-4.

  • @t-flamesvenrap4685
    @t-flamesvenrap4685 Год назад +5

    This video was so helpful thank you👌

  • @ntlakusomthuzi887
    @ntlakusomthuzi887 Год назад +1

    Your videos are the best
    Although I am done writing the are helping me improve were I have problems

  • @NicoleMakhanya-qy6rn
    @NicoleMakhanya-qy6rn Год назад +2

    You helped me understand this chapter better and made it easier

  • @LesleyxLove
    @LesleyxLove Год назад +1

    please don't stop posting videos you help us more than you know

  • @Aljerreau-plaatjies
    @Aljerreau-plaatjies 11 месяцев назад +5

    Kevin how is a=3 isnt it supposed to be 2 because 10=4a-2
    10-2=4a
    8=4a. (Then you divide both sides by 4)
    a=2

    • @tinanyembezi1594
      @tinanyembezi1594 11 месяцев назад +4

      No . When you transposed the 2 to the side of 10, the sign had to change from a negative to a positive:
      10 = 4a - 2
      10+2 = 4a
      12 = 4a
      3 = a

  • @whitendlhovu348
    @whitendlhovu348 11 месяцев назад

    Kevin is helping so much, grade saver

  • @bteszed
    @bteszed 2 года назад +8

    in the last example, (-1) squared -4 doesnt equal -4 its equal to -3???

  • @gelino14
    @gelino14 Год назад

    5:55 Hi Kevin, apparently there is a way to use that form, it would lead to solving for a and b simultaneously. Only if you’re given 2 random points

  • @RonaldMoyo-zl9jn
    @RonaldMoyo-zl9jn Месяц назад

    I don't know what to say because finally l got someone l can understand ❤
    All l can say is thank you sir ❤plz continue with this good job because there are many people out there like me who will only understand you better and 🥹 don't you ever get tired sir because your sweats are worth it especially to us ❤

  • @BhekiMashala-i4n
    @BhekiMashala-i4n 6 месяцев назад

    Kevin you a genius ❤💯🇿🇦

  • @LindelaniTeedow
    @LindelaniTeedow 6 месяцев назад

    Kevin you're the best bro❤

  • @lumkamnduzulwane963
    @lumkamnduzulwane963 10 месяцев назад

    thank you so Sir😊 but please try to center the words because we can't see clearly

  • @TlotlomatsoLekoane-xz5py
    @TlotlomatsoLekoane-xz5py Год назад

    Hey Kevin I may ask isn't the x intercept formula and the turning point formula supposed to give you the same value of parameter 'a'??

  • @yalobeko7978
    @yalobeko7978 Год назад

    Thank you

  • @yalobeko7978
    @yalobeko7978 Год назад

    Thank you sir

  • @BABITOGOTEO
    @BABITOGOTEO 5 месяцев назад

    In the practice questions of the sad graph isn't supposed to be (x-3)(x+2)??

  • @zahranaqvi4171
    @zahranaqvi4171 Год назад

    hi i dont know if your checking your old videos comments but u was doing the practice question where you find the equations of the parabola and turn it into y=ax^2 + bx +c when i was doing it i got y=2x^2 +6x+6 i dont know how im not getting your answer im very much confused please help

  • @penny_licous07
    @penny_licous07 4 месяца назад

    Thank you ❤

  • @lungilentoyi2147
    @lungilentoyi2147 2 года назад +2

    Isn't right always +?

    • @kevinmathscience
      @kevinmathscience  2 года назад

      Not with x values. - means right and + means left.

  • @otloditswepilane593
    @otloditswepilane593 3 месяца назад

    May u pls also do a video on one where random points are given

  • @ParisAdonis
    @ParisAdonis Месяц назад

    Danke!! ❤

  • @mullan_kentrell2463
    @mullan_kentrell2463 Год назад +2

    Sir your number 4 is supposed to be 2÷3=a

    • @Yutsyumi
      @Yutsyumi Год назад +1

      i was thinking the same and kept checking ...what did you get as your answer?

  • @Saxchampion
    @Saxchampion 11 месяцев назад +2

    9:34 you made a mistake a≠3 it equals to 5

  • @tomiamosun153
    @tomiamosun153 Год назад

    Shouldn't it be a positive 3 cause its shifted to the right

    • @sme741
      @sme741 Год назад +1

      No it's actually the other way round
      When it's shifted to the left, it's positive and when it's shifted to the right, it becomes negative

  • @siyamthandasibeko7654
    @siyamthandasibeko7654 2 года назад +2

    isnt it y=a(x-p)^2+q ...?

    • @kevinmathscience
      @kevinmathscience  2 года назад +2

      Some textbooks use minus, some use plus :) What you need to know is how to put the values in. So if Turning point is (1 ; -2) then it must say a(x - 1)^2 - 2
      If turning point is (-3 ; 5) then it must say a(x + 3)^2 + 5

    • @tomiamosun153
      @tomiamosun153 Год назад +1

      @@kevinmathscience oh i was wondering, tnxs

  • @FernaLayGaming2x
    @FernaLayGaming2x Месяц назад

    don't wow Kal we're still here 🤟🤟🤣 nikhona Moe's 🇿🇦🇿🇦

  • @ratie2825
    @ratie2825 Год назад

    How do we get (x-3) but in the actual bracket it was (x+p) it wasn't (x-p), please help

  • @oabilemore-personal417
    @oabilemore-personal417 2 года назад +3

    in 6 = a(4-1)(4-3)
    the answer there is 3 isnt it

    • @kevinmathscience
      @kevinmathscience  2 года назад +3

      Just be careful.
      The right hand side would be 3a
      Then 6/3 is 2

  • @rati_lol
    @rati_lol 11 месяцев назад +1

    22:00 am to 05:00 am I'm going to sleep😢

  • @sophiesphiwekhumalo7905
    @sophiesphiwekhumalo7905 4 месяца назад

    Why are we saying 3 is negative inside the bracket

    • @Clickscap
      @Clickscap 4 месяца назад

      the x value always switches signs when it's put into the formula, so if it's a positive it becomes a negative and if it's a negative it becomes positive

    • @Clickscap
      @Clickscap 4 месяца назад

      Goodluck with the test 😭😭

    • @sophiesphiwekhumalo7905
      @sophiesphiwekhumalo7905 4 месяца назад

      @@Clickscap Oh I get it thank you

  • @christiaanoosthuizen583
    @christiaanoosthuizen583 2 года назад +1

    .