Pre-Calculus - Solving rational inequalities

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  • Опубликовано: 6 сен 2024

Комментарии • 199

  • @awabyutoo4668
    @awabyutoo4668 3 года назад +73

    The way he writes is so satisfying and comforting, also he's so detailed that I understand it easily

  • @aiseiku5539
    @aiseiku5539 4 года назад +47

    I hope this guy is my teacher. Online class sucks. The teacher doesnt even explain the lessons. They just keep giving us piles of work without a proper explanation. Instead of teaching us step by step during the session, they upload examples with unclear steps of solution.

    • @bienangelo9161
      @bienangelo9161 4 года назад +1

      True that brother

    • @VationYT
      @VationYT 3 года назад +4

      fuck online school all my homies hate online school

    • @hanazawakana9790
      @hanazawakana9790 3 года назад

      the one you mention the "uncleart steps" its real for me, Like where did that number come from

    • @anontob
      @anontob 3 года назад

      Ong bro, my class' teacher is so useless. She can't even solve questions by herself without my classes own help.

    • @ivbtw4433
      @ivbtw4433 3 года назад

      @@anontob bro same she would literally let my classmates do every example and then does not explain it. Like fam what the fucj

  • @mauricecolon4359
    @mauricecolon4359 7 лет назад +50

    I like this guy clear and precise !!! great job makes my life easier we need more math teachers who speak clear English .. its torture in these colleges with the math professors

    • @TonyYLH
      @TonyYLH 5 лет назад

      i know right

    • @TonyYLH
      @TonyYLH 5 лет назад

      my math teacher was explaining why you could randomly pick 2 points from a line in a line graph to calculate the gradient, and she was speaking for 20 mins and i still didnt understand and then when my friend taught me he literally said the most simplified thing in the world..... he said from across the class, "It's because it will always give you the same answer". My teacher was so happy and she was like, "Yes, FiNALLY", And i was in my mind thinking, " The fuck woman...you could have just said that 30 fucking minutes ago when you were fucking replying to my friends on why they could randomly pick 2 points..." DO YOU KNOW ENGLISH?!?! SIMPLIFY IT!!

    • @bienangelo9161
      @bienangelo9161 4 года назад

      @@TonyYLH FACTS, THEYRE TEACHING STUDENTS NOT LIVING MATH DICTIONARIES

    • @TonyYLH
      @TonyYLH 4 года назад

      @@bienangelo9161 uhm... If they cant understand how to speak clear english.. Then just dont teach math... She made her undefinitive 30 times longer than it needed to be. When the answer was just 4 words. *"ITS ALWAYS THE SAME"*

  • @fair.yspirit8889
    @fair.yspirit8889 3 года назад +9

    my pre-calculus teacher doesn’t use a table and tells us to change signs but it’s so confusing! she doesn’t want us to do it any other way so thank you for giving a better explanation than her. i’m not doing too well in class but watching your videos is giving me hope that i will pass!

    • @robertcampomizzi7988
      @robertcampomizzi7988 Год назад

      One time I came home and was struggling with a formula for physics.
      I asked my dad, who was an engineer, what the hell was going on. He looked at it and asked, "What are toubteying to solve for"(the final temp of mixing two liquids).
      He said use this formula instead.
      I showed the teacher.. he double-checked that it was a better rearrangement of the same logic, and the teacher quickly announced, "ok, Rob is gonna be teaching the class today... so I did.
      Here I am 25 years later trying g to catch up again

  • @thekookiegirl853
    @thekookiegirl853 4 года назад +12

    Great job brother. I was drolling over it for about 2 years and no teacher was able to describe the actual theory. I'm indebted to you for whole of my life

  • @TheNixChan
    @TheNixChan 6 лет назад +4

    I know this is an old video, but you're seriously my savior, thank you so much secret math man

  • @vladislava8351
    @vladislava8351 9 лет назад +9

    thank you soooo much, you just made my work simpler and faster
    i wont be missing these problems on my test today for sure haha!

  • @paigefitzmorris649
    @paigefitzmorris649 2 года назад

    This is the first vid I could find with a rational inequality of this type where you needed to make the constant numerator into one with the variable in it. FINALLY

  • @charliestewart885
    @charliestewart885 2 года назад

    i literally love you. there’s not a single other video on youtube on harder quadratic inequalities with fractions.

  • @bowsi9
    @bowsi9 3 года назад +6

    Best tutorial on inequalities in youtube,
    I would appreciate if you included the number line for visual learners like myself.

  • @Arion661
    @Arion661 10 лет назад +2

    Oh, man. You saved my life for the pre calc test I had. Thanks so much!!!

  • @nkelepatience7267
    @nkelepatience7267 5 лет назад

    10min of your video saves me from 4 hours of classes without understanding a dime of what's going on Thanks alot Sir

  • @user-cc6wv2uc4l
    @user-cc6wv2uc4l 7 месяцев назад

    Thank you, for your awesome calm soothing voice tutoring. Understood in minutes what I could not understand after weeks of class..

  • @odgarig8601
    @odgarig8601 Год назад +1

    Wow It's SO much easier when you write it down in a number line like that. I was trying to do all of it in my head.

  • @vaibhavverma6847
    @vaibhavverma6847 7 лет назад +22

    You exactly told the thing i was looking for....awesome

  • @Roongroong039
    @Roongroong039 3 года назад

    Oh my god thank you!!!!! I am Korean students who is studying pre-calc in USA, and this made me understand things way more better!!! THANK YOU SO MUCH!!!!

  • @robertcampomizzi7988
    @robertcampomizzi7988 Год назад +1

    This is the EXACT thing I wanted to learn today! Except I didn't know the term "rational inequality " as such.

  • @hassan3kb
    @hassan3kb 3 года назад

    Thankyou so much!!!
    I wonder after visiting more than 10 websites i understood this concept here.
    May God bless you.

  • @d3athg4ming20
    @d3athg4ming20 6 лет назад +9

    Im still confused on the intervals😩

  • @kimberlylopez2380
    @kimberlylopez2380 10 лет назад +1

    You're an amazing teacher. You make things so simple and I am glad I found this video since I've been sick and out of school missing this lesson. Thank you so much!

  • @RaymundoGabriel
    @RaymundoGabriel 9 лет назад +3

    Wow, this video is just great!, I must say I undestood everything you did, better than the books a had read.
    Greetings from Mexico City.

  • @ivancapote8343
    @ivancapote8343 6 лет назад

    You don't know how useful was this for me. Thanks

  • @colossalbreacker
    @colossalbreacker 7 лет назад +1

    its 2:00am and this man just saved my ass

  • @samratkhalsa160
    @samratkhalsa160 5 лет назад +1

    You're great. Thanks a lot brother. I have a test today and you save me.

  • @captainrogers2790
    @captainrogers2790 6 лет назад

    Thank you! You have done this country a great service.

  • @Hrlover205
    @Hrlover205 5 месяцев назад

    thank you for the video i wasnt able to understand from my teacher i believe you should be my school teacher

  • @73psalm
    @73psalm 6 лет назад +1

    Thank you sir for the clarity by which you make solutions to rational functions look easy.

  • @jakeb8
    @jakeb8 10 лет назад

    Your methods are the best I have seen and they are neat and organized and easy to follow even when lost. Thank you so much I use your work as study guides to help me learn. Your awesome I recommend you to all my classmates and teachers!!! I appreciate it!

  • @PlantFoodChain
    @PlantFoodChain 10 лет назад +5

    Extremely useful and very helpful. Thank you.

  • @prncssdmnt
    @prncssdmnt 2 года назад

    This is exactly what solutions my teacher wants, thank you so much

  • @ramlahassan9761
    @ramlahassan9761 4 года назад +1

    thank you so much. this made it sound much easier. coherent explanation and we sure need more teachers like you!!

  • @edfilms9312
    @edfilms9312 5 лет назад +2

    Soooo good. this is the first time I actually get inequalities

    • @5krypt
      @5krypt 4 года назад

      my textbook literally explained nothing and i missed class so this saved my life

  • @whitemango9928
    @whitemango9928 4 года назад

    Hi, first of all i would like to thank you for this video, it IS really helpful for those who are struggling with how to use the table method to solve rational inequalities. I used your type of solving method for the table method to solve for my homework. My lecturer said there was inconsistency in my work.. the thing is... how? i had a really long talk with him and i was really upset afterwards. The thing is, he said to follow the majority and i was surprised because math is a universal language which can be solved in MANY different ways. And now my grade is at stake..again, thank you.

    • @MySecretMathTutor
      @MySecretMathTutor  4 года назад +1

      Unfortunately there are some instructors who take the view that there is only one way to perform certain task. Even simple operations like multiplication can be done in a variety of ways. Keep working hard, and don't be afraid to seek out other ways. When your grade is at stake, sometimes you just have to go with the flow, but never stop searching for others ways as well. :^D

  • @Stephanie-rg5ln
    @Stephanie-rg5ln 7 лет назад

    Yes!!!! I have an assessment tomorrow and this totally helped!!

  • @aafkssharaf1256
    @aafkssharaf1256 10 лет назад

    You are a great teacher!! Now, I can do my HW and will get A on the test becz of this v/d. Thanks a lot.

  • @goodday3431
    @goodday3431 2 года назад

    OMG you're such a lifesaver let's go. I understand this fully👍

  • @olivia8583
    @olivia8583 Год назад

    thank you so much. you saved my college math grade

  • @mathsbridge8115
    @mathsbridge8115 6 лет назад

    Your explanation was really helpful for me. Greetings from sydney

  • @encikazhar9573
    @encikazhar9573 3 года назад

    For the 1st question, can we simply bring (1-x) to the right? Become (-2) < 7(1-x)

  • @epicsoshi
    @epicsoshi 8 лет назад

    you're the best! i was really struggling with this topic and you were able to explain in such an easy-to-understand way :) i also just love your enthusiasm. many thanks!

  • @anselmtawww
    @anselmtawww 4 года назад

    Thanks, teacher u doing a great job love your teaching style its clear and easy to be understood.

  • @bubbletea8793
    @bubbletea8793 5 лет назад +1

    THANK YOU SO MUCH!!! You helped me clear up alot of confusion LOVE YOU

  • @_perryperry
    @_perryperry Год назад

    2:29 , what did you really mean with "this one doesn't change"? Like why dont we do something about that fraction, whats the reason behind it?

  • @falande641
    @falande641 7 лет назад +1

    Omg thanks so much I have test tomorrow and it finally makes sense Q-Q .

  • @edwinpious5381
    @edwinpious5381 2 года назад

    This really was a hard topic, now I think I can ace these type of questions....

  • @xenoxeureka6964
    @xenoxeureka6964 3 года назад

    woahh,,, thank you very much, it's very clear and well explained. i don't know why I'm paying for school over something that I can learn better for free. hehe.... thannk you teacher, much respect

  • @mridk
    @mridk Год назад +1

    thanks a million bro you saved me from the teacher

  • @sitisiti3152
    @sitisiti3152 3 года назад

    I've been thinking when will we use union or intersection??

  • @mushroom69690
    @mushroom69690 10 лет назад +1

    How would I write the answer in terms of, inequality sign?
    ie, x>0 ..ext
    Thank you! great vid

  • @vikramaggarwal2537
    @vikramaggarwal2537 3 года назад

    best video ever, really cleared my doubt and so easy !!!!

  • @meimisaki6491
    @meimisaki6491 11 месяцев назад

    Can you do an complicated rational inequalities to solve?

  • @likongekanyanga7189
    @likongekanyanga7189 2 года назад

    Thank you, this has made my day.

  • @decesarelucas
    @decesarelucas 3 года назад

    This is such a good video. Great explanation. Thanks

  • @sanya5538
    @sanya5538 6 лет назад

    wait I'm confused. Doesn't square brackets mean less than or equal to or the opposite way and that not square brackets mean not less than or equal to? I don't get how you solved the last problem.

  • @ajelly00
    @ajelly00 7 лет назад

    Thank you! Now I don't have to go early before school to make up the class I missed

  • @charlastorvangiel436
    @charlastorvangiel436 Год назад

    Ty ik now how to know if its close interval or open interval :D. I was getting confused bc i forgot what our prof taught us abt it i was too focused on solving the equation and i forgot how to know wether its close or open interval:')

  • @ferrynalimarsantos5180
    @ferrynalimarsantos5180 2 года назад

    Sir, Thank you so much for the free Knowledge!! 🙏🙏🙏

  • @adnamaharas7935
    @adnamaharas7935 5 лет назад

    inversely variations can you make world problems understandable ?

  • @iliketolearn1322
    @iliketolearn1322 7 лет назад +7

    wow i wish i can understand this stuff

  • @Miss_you_meow
    @Miss_you_meow 4 года назад +1

    Wait shouldn’t the x value be 7/9 instead of 9/7??

    • @Miss_you_meow
      @Miss_you_meow 4 года назад

      9x-7 will have a 0 of 7/9 so I’m confused to why he wrote 9/7

    • @MySecretMathTutor
      @MySecretMathTutor  4 года назад

      If I'm looking at the same problem it has a -9 + 7x. Note that the x is on the 7. This will give us a zero at 9/7.

  • @alexistingey9418
    @alexistingey9418 7 лет назад +2

    This was so helpful!!! thank you!

  • @youngman7655
    @youngman7655 2 года назад

    Help me what do I do if all the solutions are not included

  • @vjkaty243
    @vjkaty243 3 года назад

    8 years later, I find this to be so helpful still

  • @vincentblue2634
    @vincentblue2634 3 года назад

    What if you have the same denominator?

  • @elleyas604
    @elleyas604 8 лет назад

    I'm quite confuse. Your way of solving rational inequalities is different from other videos that I've also watched here in youtube.

  • @abdullahdmaldakhil
    @abdullahdmaldakhil 8 лет назад

    why not to use multipication inverse like multiply both sides by 2-x/4 then continue solving ..... plz answer me

  • @GiantsFan625
    @GiantsFan625 8 лет назад +6

    amazing job

  • @SomeOne1121
    @SomeOne1121 5 лет назад +1

    My man! Thanks for teaching me the things I should already know ;D

  • @oscarsoper8670
    @oscarsoper8670 6 лет назад

    ggreat video very easy to follow and exxactly what i was looking for

  • @JolitaBrilliant
    @JolitaBrilliant 10 лет назад +1

    very well explained thorough

  • @greenwhitepnion9211
    @greenwhitepnion9211 3 года назад

    what if there's no critical value? ex: -2x^2+x-3?

  • @kohzhen5610
    @kohzhen5610 6 лет назад

    Extremely HELPFUL ! Thanks a lot !

  • @markonochie1091
    @markonochie1091 10 лет назад

    I wish you were my teacher, thank you.

  • @HaHa-ts6ei
    @HaHa-ts6ei 2 года назад

    Hello teacher, how the denominator can be equal to zero 4:38

  • @calahlawson6264
    @calahlawson6264 6 лет назад

    i dont understand how i keep coming up with values that give me the wrong signs.... like in my homework i have to put a value less than 20, but i put 14 and its positive, and 10 turns out negative, for x-13

  • @himanshuraj5684
    @himanshuraj5684 2 года назад

    My Secret Math Tutor 😎😎

  • @weallgrowupanditssad1895
    @weallgrowupanditssad1895 5 лет назад

    Thank you so much our midterms is tomorrow👏

  • @alfredosalgado4174
    @alfredosalgado4174 4 года назад +1

    Thank you sir!!! But maybe Union symbol "U" next time :)?

  • @DJizz82
    @DJizz82 9 лет назад

    When solving this rational equation can I combine like terms, and set to "0" after this step (mid way through the problem): 5x-10 ≥ 4x-12
    x+2 ≥ 0
    x ≥ -2
    Also, can I use x-3 ≥ 0 and x-2 ≥ 0 in order to test my additional points ?
    x ≥ 3 , x ≥ 2
    sorry If I made this more complicated.

    • @DJizz82
      @DJizz82 9 лет назад

      ***** why not?

  • @aivkhairulamirin9004
    @aivkhairulamirin9004 3 года назад

    Thank you Sir for clearing my doubts

  • @rhaddzmontebon2824
    @rhaddzmontebon2824 4 года назад

    Thank you so much for this video!

  • @BinzillaKaijuKing-fi7xl
    @BinzillaKaijuKing-fi7xl 3 года назад +1

    Thanks I get now, nice video by the way
    \

  • @Shadowsoldier413
    @Shadowsoldier413 Год назад

    Saved my life !!! ❤

  • @ElmowafakSALIM
    @ElmowafakSALIM 7 месяцев назад

    Thank you for the videos

  • @kiraflute6391
    @kiraflute6391 6 лет назад

    well done
    that`s more useful for math student

  • @medic8038
    @medic8038 3 года назад

    Thank you
    That was so useful......

  • @stevenchacon4062
    @stevenchacon4062 10 лет назад

    You helped me so much. Thank a lot

  • @timmyjohansen3940
    @timmyjohansen3940 9 лет назад

    Wonderful tutorial.

  • @Nanczeey
    @Nanczeey 9 лет назад

    Thank you so much! This was really helpful ☺️!

  • @benpritchard2716
    @benpritchard2716 10 лет назад

    At 11.10 how come you couldn't cancel out the (x-2) and (x-3) ?
    Thanks

    • @yosef6325
      @yosef6325 4 года назад

      Hi, an answer 5 years later, because why not, haha. You don’t want to cancel anything in the denominator as it’s used to find the intervals (ex, in this case x=3, x=2 isn’t defined).

  • @johnnimrodaustria8356
    @johnnimrodaustria8356 9 лет назад

    ***** please help .. when do it become positive when putting the number on one side. Like you said, Tip no. 1...
    Your example number 1 and 2 are subtracting () to 0 ..

  • @xinyig92
    @xinyig92 6 лет назад

    Very helpful video!!! Thanks a lot!

  • @jillmaparena1204
    @jillmaparena1204 5 лет назад +1

    Thank you so much! 🙏

  • @byTriqqy
    @byTriqqy 9 лет назад

    Excellent tutorial

  • @bananabread4082
    @bananabread4082 4 года назад

    I have a question, It is always negative when you transpose it?

    • @MySecretMathTutor
      @MySecretMathTutor  4 года назад

      I'm not entirely sure what you mean.
      Do you mean flipping the sign if you divide or multiply by a negative? This is one of the rules we have to follow when working with inequalities.

  • @samirkurudi8125
    @samirkurudi8125 4 года назад

    Thank You sir!! Really helpful

  • @mynamehero6145
    @mynamehero6145 7 лет назад

    thank you very much this really help me alot

  • @kpoppin6167
    @kpoppin6167 3 года назад

    Tks bro. Great job......

  • @matiasbeccaglia8786
    @matiasbeccaglia8786 3 года назад

    very good video. thank u so much!

  • @user-rv6vz8vt9c
    @user-rv6vz8vt9c 5 месяцев назад

    Thanks alot man I appreciate you.