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

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  • čas přidán 6. 03. 2022
  • #mlungisinkosi #grade12 #matric #analyticalgeometry

Komentáře • 89

  • @amogelangmitchellmokebe7469

    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  Před 2 lety +36

      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 Před rokem +2

      How did you work it out cause Im also confused

  • @kudzaishemusemwa1868
    @kudzaishemusemwa1868 Před rokem +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!

  • @kagisoseer6706
    @kagisoseer6706 Před 2 lety +37

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +2

      You're welcome...

    • @kagisoseer6706
      @kagisoseer6706 Před 2 lety +5

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

  • @rach-tech6191
    @rach-tech6191 Před 2 lety +29

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +13

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

    • @naleditalib9175
      @naleditalib9175 Před 2 lety +4

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

    • @kikylinda5710
      @kikylinda5710 Před 2 lety

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

    • @Oratilwe.x_
      @Oratilwe.x_ Před rokem

      😭I was lost thanks for your comment

    • @siphesihledlomo8458
      @siphesihledlomo8458 Před rokem +15

      ​@@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 Před 4 měsíci +2

    Thank you so much Mr Nkosi for boosting my confidence 😊

  • @brokensheisstillshewantsto3709

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

  • @malosechidi3197
    @malosechidi3197 Před 2 lety +8

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +1

      That’s awesome family

    • @khayelihlemercury3508
      @khayelihlemercury3508 Před 2 lety

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

  • @_.tshiamo
    @_.tshiamo Před rokem +5

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

  • @primrosepewa4017
    @primrosepewa4017 Před rokem +1

    It's all appreciated thank you sir🙏💯

  • @irvinchauke406
    @irvinchauke406 Před rokem +1

    Thank u sir i was really strugling with this at school

  • @jeanetterabotapi1562
    @jeanetterabotapi1562 Před 2 lety +3

    Thank you sir so much for this lesson👍

  • @olwethungcepe-ri2xw
    @olwethungcepe-ri2xw Před rokem +6

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

  • @dipe6376
    @dipe6376 Před 2 lety +5

    Thank you for the lesson sir🙏

  • @NatashaManci
    @NatashaManci Před 2 měsíci +1

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

  • @lisandwandwa790
    @lisandwandwa790 Před 2 lety +1

    Thank you sor lesson was superb

  • @Art_with.Tavonga
    @Art_with.Tavonga Před rokem +2

    Sir are we working with the gradient of AC or AB

  • @ntuthukonturh8421
    @ntuthukonturh8421 Před rokem +1

    Best Teacher 💙

  • @vlogwithofentse
    @vlogwithofentse Před 2 lety +5

    Thank you sir this lesson was great 🙏❤️

  • @fatimaghasemi9452
    @fatimaghasemi9452 Před 2 lety +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  Před 2 lety +1

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

    • @fatimaghasemi9452
      @fatimaghasemi9452 Před 2 lety

      @@MlungisiNkosi thank you so much

  • @siphiwemaseko1241
    @siphiwemaseko1241 Před rokem +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 ?

  • @puxilica4502
    @puxilica4502 Před 2 lety +1

    👏👏👏

  • @sinakhokonkemyeza6660
    @sinakhokonkemyeza6660 Před 2 lety +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  Před 2 lety +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.

  • @extratimecontent2531
    @extratimecontent2531 Před 2 lety +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?

  • @nobahlemaneli8161
    @nobahlemaneli8161 Před rokem +1

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

  • @cwengacwera652
    @cwengacwera652 Před 17 dny +1

    So C is always positive?

  • @2kaay_946
    @2kaay_946 Před 2 lety +3

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +1

      Please put a time stamp

    • @2kaay_946
      @2kaay_946 Před 2 lety +1

      ​@@MlungisiNkosi its ay 20:48

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +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 😅

  • @tshepisomogoshadi5335
    @tshepisomogoshadi5335 Před rokem +1

    Thank you sir❤

  • @sanadungaria8215
    @sanadungaria8215 Před 2 lety +2

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

  • @oumamutshidzi97
    @oumamutshidzi97 Před rokem +3

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

  • @khanyisilethabethe2408
    @khanyisilethabethe2408 Před 2 lety +2

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

  • @sanadungaria8215
    @sanadungaria8215 Před 2 lety +2

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

  • @jeanetterabotapi1562
    @jeanetterabotapi1562 Před 2 lety +3

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +1

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

    • @jeanetterabotapi1562
      @jeanetterabotapi1562 Před 2 lety

      @@MlungisiNkosi 🙏thank you sir

  • @dashydon-topic4595
    @dashydon-topic4595 Před 2 lety +2

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

  • @raees2459
    @raees2459 Před rokem +2

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

  • @PoliticsNun
    @PoliticsNun Před 2 lety +3

    😁

  • @rach-tech6191
    @rach-tech6191 Před 2 lety +1

    good to see a new section thanks

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety

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

  • @happinesscasmiro2569
    @happinesscasmiro2569 Před 2 lety +2

    sir please do the intersaction of circles

  • @gugumthembu8163
    @gugumthembu8163 Před rokem

    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

  • @user-dm3wi9ci8t
    @user-dm3wi9ci8t Před rokem +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

  • @PinkyTshona-xh8jc
    @PinkyTshona-xh8jc Před 10 měsíci +1

    🙏🏾🙏🏾💕🙏🏾🙏🏾

  • @mphethilesithole9614
    @mphethilesithole9614 Před 2 lety +3

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

    • @MlungisiNkosi
      @MlungisiNkosi  Před 2 lety +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.