Grade 12 Algebra Lesson 1.6| Functions : Cubic Graphs

[@jareddoubell9547]

I found this channel in the beginning of 2020; I've been excelling ever since. I'm matric now and feel very confident for the future. Thank you sir for all the excellent lessons; You're are the best science/maths teacher in the world.

[@MlungisiNkosi]

It is my sincerest pleasure to be of service… Wishing you all of Gods best for this year 🙂

[@stephaniechater6767]

My teacher taught me to just use the calculator with finding the x intercept. Just press “set up” and “3: table”. Type in the equation for f(x) using alpha ‘X’ and then press enter. Press enter again when it asks for g(x) start at around -8 and end at 8. Enter when it asks the Step. Then the y values that are 0 are your x-intercepts. Not sure if it works for everything, but saves a lot of time with the factorising. 🤷‍♀️

[@ziziphobaduza8776]

It works thank you so much for sharing

[@mpuminkosi6664]

thannnnnk you so much

[@5akhile]

You just saved me 40 min

[@MudauRotondwa-np4pu]

Writing maths p1 on Friday.... Matric 2k24❤one of the best teachers here🎉🎉

[@PopieTshisevhe]

Few hours left❤ let's go

[@SiyabongaMbongoYT]

Thank you for uploading new maths content almost everyday, this helps some of us whom are rewriting their exam in June, God Bless you.❤

[@MlungisiNkosi]

I do my absolute best. Thank you that someone at least appreciates the effort…

[@ofentse.8536]

i was struggling alot like lost hope with function and then searched on youtube and your video was the first and clicked watched for ten minutes then man a little hope was restored cant wait to watch more may god bless you for the work you do

[@Rarebreed101]

Let's make it a norm to like before we even watch ❤👏🏼Thanks

[@MlungisiNkosi]

Thank you so much 😊

[@lutfiyadadabhay302]

I struggled with cubic graphs for so long and now I finally understand thanks to you. Thank you so much sir, wishing you all the success and happiness in the world 🍀

[@MlungisiNkosi]

Thank you 😊

[@KoyAmee0613]

mmh sir, you're making a difference. my classmate recommended you before our paper and i have to say that your work is extremely appreciated!!!!

[@MlungisiNkosi]

Wow… Thank you so so much❤️

[@ziziphobaduza8776]

I just want to say thank you so much it's 2:53am and I binge watching and studying with the help of your videos always know that your efforts are appreciated,Thanks again Sir.

[@sintumbatha5902]

You are the best math teacher, u make maths fun and easy . Umsebenzi wakho uyabonakala bhuti

[@MlungisiNkosi]

My pleasure 😇

[@MmathapeloMolomo]

Hey sir I think the best way to find the factor is by using the calculator Go to the calculator press mode,then no 3,then your equation press ,then after filling in the info on the calculator you will be given the table of y & x values then you check in the y values when the y is = o then you get the value of x ,& if the value of x is = -2 ,obviously when it gets to the equation it will change sign & be = 2

[@MlungisiNkosi]

Wow!!! Now i know… Thank you

[@manthabisengalina7540]

Thank you sir, you're the best teacher i was not really good with factorization but looking at this video made me get more knowledgeable. May God bless you 🙏

[@MlungisiNkosi]

This is incredible to hear. Thank you

[@bernardthabang1012]

Thanks Mr your making maths to be fun 😁😉😁 😍😍#Dr Nkosi ......dankoooo

[@MlungisiNkosi]

Thank you for conferring an honorary doctorate 😂

[@ThusoTshiping-iw9ex]

🎉I feel like a genius now😢 probably upgrading my matric

[@therealandrawnicky]

We got this !

[@lebogangsgalaxy1322]

Thanks for the lessons it's really helpful 👌 🙂

[@sindikhoza5539]

Thank you sir for your good work 🙏🙏I appreciate it.

[@MlungisiNkosi]

You’re very welcome thank you

[@austin_tiyani]

Yep, I've just learned calculus in this video. Thank you Uncle!!!

[@MlungisiNkosi]

You’re welcome

[@MoyisiMoyikwa-kv8ut]

You're like the tree that is to be known by its fruit... Good fruit. 🤝🤓

[@fanozanepsternastro6153]

Uyasishaya span sakho boss😊😍ungenhla kakhulu

[@Sibahle-khum]

I’m loving it here 😅😊

[@yolandasuprise5564]

Wow I understand much better than in the classroom ✌️🤙

[@MlungisiNkosi]

I’m grateful 😇

[@Sibahle-khum]

I’m loving it here 😅

[@oratilemmetsa]

please give this man his flowers whilst his still alive.😘

[@rahulg1989]

You are very chill kind of guy who explains nicely I liked it😂 haha thanks

[@MlungisiNkosi]

Thank you so much 😊

[@rahulg1989]

@@MlungisiNkosi actually I needed a video on complete detail on cubic polynomial where graphs with all the types of cubic will be taught but I got this.. It was nice though... I subbed you❤️

[@Asake2024]

Hello sir, for the functions... Can you tell the Learners to buy the silver or the white calculator(Casio f×-991ZA) cause it does all the work for you, which saves time... You just need to press : Step 1 : mode(1) Step 2 : EQN (5) Step 3 : press 3 if it's that regular function.... And press 4 if it's a cubic function Step 4 : type in a, b, c values if it's a regular function Or Type a, b, c, d values if it's a cubic function Step 5 : open brackets and white the factors inside, but change the signs... So if they say 5... You say (×-5) It gives you all the factors Then (×-5) will be × =5

[@MlungisiNkosi]

That’s great. Is it allowed in the exam?

[@mazwimkhonza2823]

Keep Going 🤝 you're killing it💖

[@MlungisiNkosi]

Thank you 😊

[@pfanomaphosho]

Thank you so much for this ! May we please get a video on optimization

[@MlungisiNkosi]

Check the last video I posted today

[@elizabethndlovu9747]

Hello thank you sir ungisizile yaz im confident on passing my final exams

[@emmanuelwiseman8415]

Wow I understood well , today definitely I will master my trial exam

[@MlungisiNkosi]

I’m glad you will

[@sphesihlminister5840]

Mhhh wow great work bruu I'm impressed

[@MlungisiNkosi]

You’re welcome 😊

[@zamandlovu3150]

So helpful but can we have a lesson based on the interpretation of already drawn graphs🙂 that would be so helpful

[@MlungisiNkosi]

That's coming

[@zamandlovu3150]

Danko🙂

[@nsovomashamba813]

thank you malume❤

[@GibsonMogale]

Road to 100k 🥳🥳🎉🎉

[@MlungisiNkosi]

Yebooooooo siyaqhuba..

[@msjay6780]

Good job 👏👏. Please where can I get Grade 11 Maths and Physics I want assist my daughter🙏

[@MlungisiNkosi]

The content we make is suitable for Grade 10-12. I will be adding more content specifically targeted towards those grades in the near future. Thank you for making this channel your home and playing such an active role in your child's education.

[@Topglessonschannel]

Completely understand thank you man.

[@MlungisiNkosi]

My pleasure… 😌

[@sammazibuko7001]

Hey sir there is this formular to find the turning points of a cubic equation it's x=(-b±√(b^2 -3ac))÷3a This formula helps to find the x cordinates for the turning points of a cubic equation but I've never seen it in a memo can you please give it a try and can you tell me what you think about it It's basically like the quadratic formula but only the 4ac becomes 3ac and the 2a becomes 3à

[@MlungisiNkosi]

Thank you. I'll check it out

[@phophinemalili4001]

Thanks a lott sirrr am getting better in maths and physics GOD BLESS YOU so that you can help young people who are in grade R🙌🤍😩and more

[@MlungisiNkosi]

It is my pleasure to serve. Keep recommending our channel to others

[@kgothatsohopentshebele]

Sir why don't you also teach finding x intersepts with a calculator?

[@MlungisiNkosi]

Where’s the fun in that? 😝

[@lethabobapela6027]

You're the best

[@MlungisiNkosi]

Thank you

[@swirl._.3]

this reallllly helped

[@MlungisiNkosi]

My pleasure

[@tsholow1933]

Watching this a day before my exam hope it helps....#Anxious

[@MlungisiNkosi]

All the best… Please use it and recommend it to others after this

[@nompiloradebe8607]

My friend in Grade 12 asked me for help so I'm reminding myself since it's been a while...

[@ignotiusmatlou5395]

Pls do another cubic lesson

[@MlungisiNkosi]

I have some examples for you

[@omphiletsiane4747]

Sir I was asking for supplimetary question papers starting from 2018🤲🤲....

[@tintswalokhosa]

The 'Kx' method is also quite simple.

[@rofl.connoisseur]

[@MlungisiNkosi]

Thank you 😊

[@amandansimba3208]

what happened to -11x?

[@liralira993]

Was asking myself the same question.. what happened to 11x

[@lwandozembeta9236]

Thank you sir

[@kgothalangculture5284]

i understand but do more examples

[@MlungisiNkosi]

Later I will

[@PalesaMakhethe]

Thank you sir