Analytical geometry_ Lesson 1| Distance, Gradient and Midpoint | Mlungisi Nkosi

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  • เผยแพร่เมื่อ 6 มี.ค. 2022
  • #mlungisinkosi #grade12 #matric #analyticalgeometry

ความคิดเห็น • 89

  • @amogelangmitchellmokebe7469
    @amogelangmitchellmokebe7469 2 ปีที่แล้ว +63

    I was really confused on why you used the coordinates of AC instead of AB when you calculated the gradient of AB but I managed to fix it myself and by the way I'm a month old subscriber and I'm glad to tell you that your Content is great help!Thank you Sir!

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +38

      Thank you Amo… I’m glad you’re able to bare with this old man even when he makes mistakes. Thank you so so much for joining us. I hope this channel really becomes a home for you

    • @Mgijimiibhincakazi-rc2ww
      @Mgijimiibhincakazi-rc2ww ปีที่แล้ว +2

      How did you work it out cause Im also confused

  • @kagisoseer6706
    @kagisoseer6706 2 ปีที่แล้ว +38

    Distinction on Maths& Physics it's promising.... Thanks to You Sir

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +2

      You're welcome...

    • @kagisoseer6706
      @kagisoseer6706 2 ปีที่แล้ว +5

      @@MlungisiNkosi Dankie sir.... I would recommend Trig functions graphs interpretation.

  • @kudzaishemusemwa1868
    @kudzaishemusemwa1868 ปีที่แล้ว +29

    I normally skip adverts but for you uncle I will watch all of them no matter how long they are, so grateful for your content ,one day I will be rich and you will be one of the few teachers I will spoil!

  • @rach-tech6191
    @rach-tech6191 2 ปีที่แล้ว +29

    sir, you use the coordinate of AC to find the gradient of AB,at the ALTITUDE diagram

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +13

      Thank you for making me aware. I hope it didn’t affect your understanding

    • @naleditalib9175
      @naleditalib9175 2 ปีที่แล้ว +4

      Sir I got lost on the altitude section ...for gradient of BT the inverse is -¾ or?

    • @kikylinda5710
      @kikylinda5710 2 ปีที่แล้ว

      @@MlungisiNkosi sir it changes the answer the equation is then supposed to be y=-3/4x+8.5

    • @Oratilwe.x_
      @Oratilwe.x_ ปีที่แล้ว

      😭I was lost thanks for your comment

    • @siphesihledlomo8458
      @siphesihledlomo8458 ปีที่แล้ว +16

      ​@@Oratilwe.x_The equation is still the same. It is just a matter of changing AB to AC. Correct co-ordinate substitution but wrong naming. He was supposed to name it a Gradient of AC not a Gradient of AB.
      Remember he was explaining the concept of Altitude using the concept of perpendicular lines. BT is perpendicular to AC, hence he had to find the Gradient of AC in order to find the Gradient of BT, then the equation of BT.

  • @user-my5rt6cl5p
    @user-my5rt6cl5p 4 หลายเดือนก่อน +3

    Thank you so much Mr Nkosi for boosting my confidence 😊

  • @brokensheisstillshewantsto3709
    @brokensheisstillshewantsto3709 ปีที่แล้ว +6

    I'm really enjoying the lessons.... reason is bcoz you are the best...your patience is incredible Thank you, izandla zidlula ikhanda 😊

    • @MlungisiNkosi
      @MlungisiNkosi  ปีที่แล้ว +2

      Kubonge mina. I’m glad uyasizakala

  • @NatashaManci
    @NatashaManci 3 หลายเดือนก่อน +2

    This analytic was confusing but now i really understand it i get too much interest

  • @malosechidi3197
    @malosechidi3197 2 ปีที่แล้ว +8

    I’m pretty confident about tomorrow’s paper, thank you sir🤝

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +1

      That’s awesome family

    • @khayelihlemercury3508
      @khayelihlemercury3508 2 ปีที่แล้ว

      Grade 12 Geography Contents (Theory and Map work) th-cam.com/channels/M9s66LrpIUeorALdgPoEuA.html

  • @_.tshiamo
    @_.tshiamo ปีที่แล้ว +5

    Good day sir, why did you use coordinates of C to calculate the gradient of AB ?

  • @irvinchauke406
    @irvinchauke406 ปีที่แล้ว +2

    Thank u sir i was really strugling with this at school

  • @Art_with.Tavonga
    @Art_with.Tavonga ปีที่แล้ว +2

    Sir are we working with the gradient of AC or AB

  • @olwethungcepe-ri2xw
    @olwethungcepe-ri2xw ปีที่แล้ว +6

    You are absolutely the best teacher ❤You teach us step by step 🤌You don't assume that everyone knows it 🔥nah
    Thee Best !!!

  • @primrosepewa4017
    @primrosepewa4017 ปีที่แล้ว +1

    It's all appreciated thank you sir🙏💯

  • @dipe6376
    @dipe6376 2 ปีที่แล้ว +5

    Thank you for the lesson sir🙏

  • @jeanetterabotapi1562
    @jeanetterabotapi1562 2 ปีที่แล้ว +3

    Thank you sir so much for this lesson👍

  • @nobahlemaneli8161
    @nobahlemaneli8161 ปีที่แล้ว +1

    It’s great lessons. Is it possible to download Sur

  • @fatimaghasemi9452
    @fatimaghasemi9452 2 ปีที่แล้ว +2

    Hello to my best mathematic teacher ever🌼Is this video adequate for basic knowledge of analytic geometry or you also recommend me to watch the next video?

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +1

      Hi Fatima,
      And thank you for the awesome compliment. I do recommend that you watch the the next one as well

    • @fatimaghasemi9452
      @fatimaghasemi9452 2 ปีที่แล้ว

      @@MlungisiNkosi thank you so much

  • @dashydon-topic4595
    @dashydon-topic4595 2 ปีที่แล้ว +2

    I’m writing tomorrow now I feel like an ready for the test thanx sir❤️

  • @cwengacwera652
    @cwengacwera652 หลายเดือนก่อน +1

    So C is always positive?

  • @siphiwemaseko1241
    @siphiwemaseko1241 ปีที่แล้ว +2

    Good lesson indeed sir
    Can i ask it is you're calculating on Y=MX+C it is possible for C to equal to a negetive number ?

  • @lisandwandwa790
    @lisandwandwa790 2 ปีที่แล้ว +1

    Thank you sor lesson was superb

  • @vlogwithofentse
    @vlogwithofentse 2 ปีที่แล้ว +5

    Thank you sir this lesson was great 🙏❤️

  • @sinakhokonkemyeza6660
    @sinakhokonkemyeza6660 2 ปีที่แล้ว +3

    Hello Mr Nkosi can I please ask something let's say for example you got 67%for example for Physical Science and you studying in Varsity but you wanna improve this mark are you allowed to register to write in the upcoming final exams in November and also how will they allocate the mark if they do let you if you score lower than that do they give you the lower mark?
    Just wanna know cause one of my mates got that and they Wanna improve to try get bursaries in relation to Engineering and it's a tough field In terms of Math and Science.

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +10

      They can register but I highly doubt registration is still open.
      If it so happens that one gets a lower mark, they always consider the highest mark as the official one. But there’s no way you can get a lower mark with MlungisiNkosi as your plug… Not possible.

  • @oumamutshidzi97
    @oumamutshidzi97 ปีที่แล้ว +3

    I'm still lost as to why we use AC to find the gradient for AB ?

  • @extratimecontent2531
    @extratimecontent2531 2 ปีที่แล้ว +2

    Is it safe to say the gradient of perpendicular lines are reciprocals ?
    And is the concept of understanding one on one or many to one functions relevant in this topic?

  • @ntuthukonturh8421
    @ntuthukonturh8421 ปีที่แล้ว +1

    Best Teacher 💙

  • @gugumthembu8163
    @gugumthembu8163 ปีที่แล้ว

    Am writing maths this year but am. Not happy
    Am planning to rewrite it next year june
    Can u please don't leave this platform because I want to start studying in July for maths and physics so I can pass because with you am able to understand a lot of things but in my high school years I was blind I don't know what happened

  • @sanadungaria8215
    @sanadungaria8215 2 ปีที่แล้ว +2

    Or a playlist of the whole topic analytical geometry? Or is this the only vid

  • @puxilica4502
    @puxilica4502 2 ปีที่แล้ว +1

    👏👏👏

  • @khanyisilethabethe2408
    @khanyisilethabethe2408 2 ปีที่แล้ว +2

    good morning sir question
    you said we finding gradient for AB right
    why are we using the coordinates for AC
    🤔😊

  • @sanadungaria8215
    @sanadungaria8215 2 ปีที่แล้ว +2

    Sir do you have a vid of lesson in analytical geometry including circle?😭

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว

      Yes, I will create a Playlist soon

  • @2kaay_946
    @2kaay_946 2 ปีที่แล้ว +3

    sir, for the gradient of BT shouldnt you use line AC?

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +1

      Please put a time stamp

    • @2kaay_946
      @2kaay_946 2 ปีที่แล้ว +1

      ​@@MlungisiNkosi its ay 20:48

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +7

      @@2kaay_946 you’re absolutely correct. Eish I get nervous when I record.
      You’ll see that I used the co-ordinates of AC but called it AB for some strange nervousness reason 😅

  • @jeanetterabotapi1562
    @jeanetterabotapi1562 2 ปีที่แล้ว +3

    Sir you didn't include collinear points how do we calculate them

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +1

      Collinear points are point on the same straight line… Their gradients are equal

    • @jeanetterabotapi1562
      @jeanetterabotapi1562 2 ปีที่แล้ว

      @@MlungisiNkosi 🙏thank you sir

  • @user-dm3wi9ci8t
    @user-dm3wi9ci8t ปีที่แล้ว +1

    Sir im confused why on the gradient of AB you calculated the gradient of AC
    Can u plz kindly clarify that for me instead

  • @happinesscasmiro2569
    @happinesscasmiro2569 2 ปีที่แล้ว +2

    sir please do the intersaction of circles

  • @rach-tech6191
    @rach-tech6191 2 ปีที่แล้ว +1

    good to see a new section thanks

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว

      You’re welcome. I’ll always try to be your plug

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว

      @Livhuwani Gl I’m glad you’re not finding it overwhelming.

  • @tshepisomogoshadi5335
    @tshepisomogoshadi5335 ปีที่แล้ว +1

    Thank you sir❤

  • @PoliticsNun
    @PoliticsNun 2 ปีที่แล้ว +3

    😁

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +1

      I made someone very happy today 😂

  • @mphethilesithole9614
    @mphethilesithole9614 2 ปีที่แล้ว +3

    Hey is it possible to give us varsity content physics and chemistry 🥺

    • @MlungisiNkosi
      @MlungisiNkosi  2 ปีที่แล้ว +4

      Yes it is… But at the moment, I’m trying to get people to qualify to get into varsity. I promise I will start on it but I’m not sure if it’ll be this year.

  • @PinkyTshona-xh8jc
    @PinkyTshona-xh8jc 11 หลายเดือนก่อน +1

    🙏🏾🙏🏾💕🙏🏾🙏🏾

  • @raees2459
    @raees2459 ปีที่แล้ว +2

    Hi at 17:47 why did u say that AB is perpendicular to BC