Algebra - Solving Inequalities

Поділитися
Вставка
  • Опубліковано 29 гру 2024
  • There is a now-famous rule about switching the inequality sign whenever multiplying or dividing both sides by a negative. But why? In another special video of Yay Math in Studio, we go over the rule, then apply it to solve several inequalities. The number line comes up too, so we explore that.
    Then, we go over some expressions that come up in word problems, such as what "at least, at most, no more than" and "no less than" mean with inequality signs. YAY MATH!
    Learning can always be fun and connective. Please visit www.yaymath.org for:
    • all videos
    • free quizzes
    • free worksheets
    • debut book on how to connect with and inspire students
    • all-in-one math courses that teachers and parents can use, backed by Yay Math energy

КОМЕНТАРІ • 253

  • @janetsoriano4280
    @janetsoriano4280 7 років тому +140

    we need more people like you in the world

  • @fifahmmkad189
    @fifahmmkad189 4 роки тому +38

    Im honestly astonished on how simple my math teachers could've taught inequalities

    • @pkus20
      @pkus20 3 роки тому

      Sameee 😂

    • @lennoxroger5311
      @lennoxroger5311 3 роки тому +1

      I know im asking the wrong place but does someone know of a way to log back into an instagram account??
      I was stupid forgot my password. I would love any tricks you can give me

    • @fifahmmkad189
      @fifahmmkad189 3 роки тому +1

      @@lennoxroger5311 just send an email reset password

  • @MrMsMe77
    @MrMsMe77 6 років тому +27

    You are funny ...best of all, easy to understand math with you. I wish you were my math teacher!

  • @happycakes1946
    @happycakes1946 6 років тому +30

    Wow multiplying by (-1) really demonstrates the reason why we have to flip the sign, thank you sir!

    • @kevinrawding6730
      @kevinrawding6730 4 роки тому +2

      Jackington Kellogers it’s not that it’s (-1) but because it’s negative don’t think about the number but think about if you are multiplying or dividing it by a negative

  • @secondwind5689
    @secondwind5689 4 роки тому +9

    I have to say, actually explaining why a function works a certain way instead of forced memorization works so much better to learn a topic👍

  • @ChiMingWang-v5y
    @ChiMingWang-v5y 11 місяців тому +1

    00:12 Solving inequalities involves adding, subtracting, multiplying, and dividing with one exception.
    02:19 Multiplying by negative numbers requires switching the inequality sign.
    04:20 Solving inequalities by applying rules and logic.
    06:40 Solving inequalities using algebraic manipulation
    08:38 When multiplying or dividing both sides, flip the sign of the inequality.
    10:27 Solving inequalities involving multiplication and addition.
    12:27 Understanding the concept of 'at least' and 'at most'
    14:30 Understanding the concept of 'no less than' and 'no more than'.
    Crafted by Merlin AI.

    • @yaymath
      @yaymath  6 місяців тому

      These timestamps are great!

  • @grahamkerr9143
    @grahamkerr9143 3 роки тому +4

    honestly, I've never had so much fun learning about inequalities. Seriously though, great content and even better tuition. Good job!

    • @yaymath
      @yaymath  3 роки тому +2

      Graham: thank you. It's an honor to be in your corner during your learning journey.

  • @liza.j590
    @liza.j590 4 роки тому +8

    It’s sad that we come back to videos like these on UA-cam. And ppl wonder why teachers don’t get paid much. But I hope he does Bc he’s awesome!!!!

  • @princess_aaliyah7051
    @princess_aaliyah7051 8 років тому +45

    u make things so much clearer💯®☝

  • @loeyverse6601
    @loeyverse6601 4 роки тому +2

    another great math teacher found on youtube! tysm.

    • @yaymath
      @yaymath  4 роки тому +1

      you're so kind.

  • @wendyoffroad
    @wendyoffroad 6 років тому +8

    I love your logical explanation! This is a great video... I think we've watched this at least four times. Yay Math!!!

  • @willowtree9548
    @willowtree9548 6 років тому +8

    Yaymath u are saving me from despair and hopefully my GPA as well!!
    Loving your teaching skills

    • @tuquyento4322
      @tuquyento4322 6 років тому +1

      Hello willowtree , What class are you in?

  • @sheamendes
    @sheamendes 7 років тому +50

    Did he just say Whatup? That was the best way to start a video, no wonder I replayed twice. He is so entertaining to watch yet he gets to the point. I wish you were my teacher! You are so funny & you teach very well. Also, wouldn't at least mean less because how can you guess you have more than what you think you have rather than underestimating, @yaymath?

    • @hewwothere3862
      @hewwothere3862 7 років тому +1

      At least means at the minimum or not less than. I guess you know what "minimum" means don't you?

    • @thegoodlydragon7452
      @thegoodlydragon7452 4 роки тому +1

      Why would a math teacher be less likely to say whatup? You know intellectuals are actually human, right? He's not a robot.

  • @Opethianaut
    @Opethianaut 6 років тому +5

    Thank you! I'm trying to go after my GED and Math is all that I have left to achieve. This helped! Thank you!

  • @vili8025
    @vili8025 4 роки тому +4

    Can a number be greater than itself?
    Yes, it's a bloke's mental state called "A Legend in his own mind"

  • @ninjanina4299
    @ninjanina4299 4 роки тому +2

    Thank you so much, you helped me understand this so much easier than other videos. You are also a good entertainer as a teacher. You are a great help.

  • @iamlazarow3526
    @iamlazarow3526 5 років тому +8

    I just passed my math test for the GED today. Your videos really helped me achieve the math. Thank you and God bless you.

    • @yaymath
      @yaymath  5 років тому +4

      What a huge honor it is to be in your corner. Congratulations on this huge milestone in your life.

    • @iamlazarow3526
      @iamlazarow3526 5 років тому +1

      @@yaymath thank u so much boss man. U make math interesting while cracking jokes. Its a nice intermission lol. Stay blessed big bro and thanks again!

    • @camrynpope1819
      @camrynpope1819 5 років тому +1

      I'm trying to pass the GED math myself man. Wish me luck. 😁

    • @iamlazarow3526
      @iamlazarow3526 5 років тому +2

      @@camrynpope1819 for all that i studied, i feel like i was given kitty queations. But hey, I'll take it. Just study hard and the questions will turn to kitty questions. I hopeu get it. Please let us know how u did.

    • @camrynpope1819
      @camrynpope1819 5 років тому +2

      @@iamlazarow3526 Thanks for the advice. I will definitely let you guys know 😁

  • @KaturahBrown1
    @KaturahBrown1 8 років тому +95

    awesome wish he was my teacher

  • @msr5565
    @msr5565 9 місяців тому

    I love that last thing you said about how we're all in the same boat trying to make sense

  • @numbers6246
    @numbers6246 3 роки тому

    This guy is the best teacher ever !!!!

  • @2zero.6
    @2zero.6 5 років тому

    If u where my teacher Id Be SO HAPPY TO come to UR CLASS EVERY SINGLE DAY OMG THIS IS HOw Kids Will Learn MAth U have to have the right teacher OML We Need Ppl Like u in math classes

  • @joseparedes6201
    @joseparedes6201 5 років тому +1

    Beautiful multiplication by -1. Easy to understand the rule. Thank you.

  • @lhozahoro5788
    @lhozahoro5788 5 років тому +5

    Super helpful. *loudly exclaims* “GONE” my favorite part 😂!

  • @tanedgar779
    @tanedgar779 6 років тому +5

    If there were a few hundred million of you every single student will be so much happier

  • @Mikechurch1999
    @Mikechurch1999 5 років тому +49

    i believe that is a alligator sir.

    • @ifyouseethisusernameyoumus1405
      @ifyouseethisusernameyoumus1405 5 років тому +1

      Let me correct your sentence, just because I'm a Grammar Nazi.
      Correction: I believe that is an alligator, sir.

    • @ifyouseethisusernameyoumus1405
      @ifyouseethisusernameyoumus1405 5 років тому +2

      @ACHO Jesus is God. There is a trinity: The Father, the Son, and the Holy Spirit and they are all identified as God. I can argue that and win it with evidence from the Bible.

    • @ifyouseethisusernameyoumus1405
      @ifyouseethisusernameyoumus1405 5 років тому +1

      @ACHO I have so many verses that prove that you're wrong, not just John 1:1.
      John 1:1
      John 3:16
      Colossians 2:9
      John 8:58
      John 10:30
      John 5:17-18
      John 14:6 (He created life, and he is life.)
      1 John 5:7
      1 Timothy 3:16
      Not only did He claim to be God, but He also claimed to have the power of God. He said He has the authority to judge the nations (Matthew 25:31-46). He claims the authority to raise people from the dead (John 5:25-29) and to forgive sins (Mark 2:5-7)-things only God can do (I Samuel 2:6; Isaiah 43:25).
      Now, where is your proof that Jesus isn't God?

    • @wildbill8362
      @wildbill8362 4 роки тому +1

      And, a math video went into a discussion about a cult....hahahahaa

  • @منارالعنزي-س3ض
    @منارالعنزي-س3ض 4 роки тому

    I'm from SA 🇸🇦🇸🇦🇸🇦I love your explain 🥰❤️....continues

  • @hilashirom5652
    @hilashirom5652 7 років тому +20

    i love this teacher

  • @thelightshipkell8101
    @thelightshipkell8101 4 роки тому

    Finally a energetic math teacher

  • @anamanning4460
    @anamanning4460 4 роки тому +2

    Thanks for the video
    I was getting frustrated with my math HW, but know i feel really comfortable with it.

  • @aviationnation5997
    @aviationnation5997 5 років тому +2

    A good teacher=Happy learning students
    Thanks Yaymath!

  • @jessycorona4599
    @jessycorona4599 4 роки тому +1

    i went into inequalities very confused but this has helped alot thanks. Just need to pass my Math GED Test and ill finally get my GED. Thanks alot sir.

    • @yaymath
      @yaymath  4 роки тому +1

      You will. It’s inevitable.

    • @jessycorona4599
      @jessycorona4599 4 роки тому

      yaymath passes my math GED test. Got my GED thank you wouldn’t of been possible without many of your math videos.

  • @bricktothehead
    @bricktothehead 4 роки тому

    Thank you so very much. I watch a lot of your tutorials. I see a lot clearer mathematically

  • @hewwothere3862
    @hewwothere3862 7 років тому +3

    I wish we got teachers like you in our schools :D

  • @RaidsHim
    @RaidsHim 4 роки тому +2

    13:06 I love this guy

  • @fauziashaikh8666
    @fauziashaikh8666 5 років тому

    The way you teach 😍👏👏👏
    Hats Off Sir...!!
    U made this stuff a lot more than just simple

  • @schefontagosserand2663
    @schefontagosserand2663 2 роки тому +1

    Best way to explain it outstanding!

    • @yaymath
      @yaymath  2 роки тому

      I’m so happy you understand so clearly.

  • @joyakaram884
    @joyakaram884 4 роки тому +2

    youre literally amazing thank you

  • @yaredtadesse8470
    @yaredtadesse8470 4 роки тому +1

    yo thanks for the video i understand it now thk so much again

  • @WeedArtz123
    @WeedArtz123 7 років тому +4

    very helpful for my maths test in 2 hours thx you

  • @khaleelhummeid7878
    @khaleelhummeid7878 5 років тому +1

    You are number one, I wish you could tutor me? Mr. Robert I watched your online classes before I had my GED and now I'm in my second semester in College. I really need help, my math teacher is all over the place sir, she flies through the materiel! Please help me sir?

  • @ignaciomz12
    @ignaciomz12 6 років тому +4

    you are awesome unlike my teacher i can actually understand you

  • @jessicanaidoo1307
    @jessicanaidoo1307 4 роки тому

    Hi Sir. How would you work out an inequality that has two inequality signs? For example: 2x-5>3+5x

  • @daisysamson9498
    @daisysamson9498 5 років тому

    Hey yaymath I have question for you .Is there another way to solve LCD inequalities in short way?I got headche on it.

  • @richelledelacruz1172
    @richelledelacruz1172 7 років тому +1

    This is my favorite tutorial.

  • @charkbrister9004
    @charkbrister9004 3 роки тому

    I would have loved a math teacher like that

  • @Princess-iy1hm
    @Princess-iy1hm 5 років тому +1

    thank you so much!, you are very helpful, I wish you were my teacher

  • @wendolineurbina8812
    @wendolineurbina8812 4 роки тому +1

    your are a great teacher

  • @oliviacunningham6764
    @oliviacunningham6764 4 роки тому +2

    Thank-you your explanations really helped me understand better! I'm gonna say something random now, you sorta look like my dad and I'm a little freaked out lol

  • @raymondginn8085
    @raymondginn8085 6 років тому +2

    He is great! No, in real life, you probably will not use !0% of this in real life (unless you go into some discipline that calls for it), but what it really teaches you is how to reason things out.

  • @davidwright8432
    @davidwright8432 5 років тому

    This is far too easy and clear to be math! thanks.

  • @juliet8314
    @juliet8314 6 років тому +4

    Yay math yay math yay math thank you!!!!!!💥✔✔✔

  • @khalidbornaparte6250
    @khalidbornaparte6250 6 років тому +1

    Thank you Robert.

  • @atlas1936
    @atlas1936 5 років тому +2

    Thank you so much I missed my math lesson for today and I had homework and I was completely lost

  • @soulofallin06041978
    @soulofallin06041978 6 років тому +7

    Oh i got 49 out of 50 because of this video thanks

    • @RaidsHim
      @RaidsHim 4 роки тому

      sheetal shetty s I like your lies

  • @kimcarthew2697
    @kimcarthew2697 4 роки тому +1

    I love your video, it really funny kim

  • @somniato7759
    @somniato7759 5 років тому

    Wow you're actually a fun teacher

  • @hemantsgaming3861
    @hemantsgaming3861 5 років тому

    Really good video and explanation👌🏻

  • @Bella-qr4ry
    @Bella-qr4ry 4 роки тому +1

    4:51

  • @jbutler2005
    @jbutler2005 6 років тому +1

    This guy is the best

  • @BTSARMY-el8no
    @BTSARMY-el8no 7 років тому +12

    Is this actually going to need in life other than passing tests

    • @thegoodlydragon7452
      @thegoodlydragon7452 4 роки тому

      If you have a job that requires you to think rather than simply move you body, whatever that job is, understanding how to think systematically is always beneficial. Likewise if you go into any natural science or engineering, then algebra itself will even be directly relevant to your work.

  • @FakeAccount
    @FakeAccount 4 роки тому

    in an inequation like 1/1-2x > 1/2x+3, why can't I just raise both sides to -1 so I can get 1-2x > 2x+3 ??

  • @Oiitsfury
    @Oiitsfury 7 років тому +1

    Thank you so much man 😭😭

  • @nikisawyers7559
    @nikisawyers7559 2 роки тому

    You say “burn through these” but inactuallr need someone to break it down slowly. I’m having such a hard time, and I cannot get into college without this class.

  • @jrm-c1u
    @jrm-c1u 4 роки тому +2

    13:00 Me: Larger! Him Literally a second later: Correct! Me: ._.

  • @blacksnow8070
    @blacksnow8070 3 роки тому

    This is embarrassing but I'm a grade 12 student who never really understood the whole sign switch assignment. I think i get it I'm not sure yet I'll have to do some questions myself BUT I do have a doubt, For trying to balance out fractions can we take LCM of both sides?

  • @zephyr1327
    @zephyr1327 4 роки тому +1

    0:10

  • @zuneranoor3653
    @zuneranoor3653 3 роки тому

    Waooo excellently explained 😳🌹

  • @gregorytrane7828
    @gregorytrane7828 3 роки тому +1

    It's sad that I can find better math and science teachers on UA-cam than in the colleges and universities that I graduated from. But at least they're more beneficial to all who are interested in the pursuit of higher learning.

  • @user-bt2yl7jc9m
    @user-bt2yl7jc9m 3 роки тому +1

    You are awesome!

  • @abdulahad2298
    @abdulahad2298 6 років тому +1

    You are a legend

  • @accessmathtutoring
    @accessmathtutoring Рік тому

    Excellent ! ❤👍

  • @KaturahBrown1
    @KaturahBrown1 8 років тому +1

    your amazing love the teachings

  • @madelinerincon9628
    @madelinerincon9628 5 років тому

    I learned so much thanks 😢😭

  • @jellasumangit4152
    @jellasumangit4152 4 роки тому

    Thankyou so much 💙

  • @joanlynch5271
    @joanlynch5271 6 років тому +1

    Love yay math!!

  • @Apple-mm7pb
    @Apple-mm7pb 5 років тому +1

    thank you so much *brother*

  • @Citlalminaa
    @Citlalminaa 8 років тому +2

    I dont understand, when he multiplyed 4 to both sides of the fraction, why did it become a 2, on the fraction to the right? And couldnt you just make the fractions have a common denominator and then solve?

    • @tuxedo2037
      @tuxedo2037 8 років тому +1

      It became a 2 because 4 divided by 2 is 2. Even if you made the denominator the same (like 4) you will still get 2x - 6 > 2x-6 which cannot be solved

  • @chucklewhuckle
    @chucklewhuckle 4 роки тому +1

    You are the Bob Ross of math

  • @yaredtadesse8470
    @yaredtadesse8470 4 роки тому

    i like people that are interactive and this video was great

  • @ismaelsumbal2308
    @ismaelsumbal2308 6 років тому +31

    Who watching in 2019

  • @thatsokay6446
    @thatsokay6446 5 років тому

    This really helped me thankyou

  • @khulud9972
    @khulud9972 5 років тому

    I wish that you were my teacher,thank you soooo much

  • @jamealroach2319
    @jamealroach2319 7 років тому +1

    You those seems much easier, thank you

  • @Geo35868
    @Geo35868 6 років тому +1

    thanks this is helping me

  • @MatthewAlkins
    @MatthewAlkins 7 місяців тому

    U are absolutely awesome

  • @obsessedgamer6218
    @obsessedgamer6218 5 років тому +1

    You are indeed weird and funny.
    Love you weirdo 🤗🤗🤗

  • @ዘእምነገደኢትዮጵያ
    @ዘእምነገደኢትዮጵያ 5 років тому

    Thank you sir, good stuff.

  • @nucleus7896
    @nucleus7896 7 років тому

    great video!

  • @vitoamos2815
    @vitoamos2815 4 роки тому

    Brilliant !

  • @maryj9684
    @maryj9684 5 років тому +2

    10:17 I was shouting 8 at the screen because like terms idk 😭

  • @dheemaanmehta5037
    @dheemaanmehta5037 7 років тому +30

    I wish u where ma teacher

    • @tuquyento4322
      @tuquyento4322 6 років тому +1

      Hello Dheemaan Mehta What class are you in?

    • @davidwright8432
      @davidwright8432 5 років тому +2

      But wait! He is! He just taught you - and me! - something.

  • @juniormaisoneuve2573
    @juniormaisoneuve2573 5 років тому

    He's awesome 👍

  • @snarfoo1
    @snarfoo1 2 роки тому

    Thank you!!!

  • @jamilrehman8256
    @jamilrehman8256 3 роки тому

    May God bestow showers of blessings upon you....

  • @elsielopez4365
    @elsielopez4365 6 років тому

    Thank you !

  • @sageperez2100
    @sageperez2100 2 роки тому

    thank you so much

  • @aliciasalazar7237
    @aliciasalazar7237 7 років тому +2

    your the best

  • @naden897
    @naden897 6 років тому

    how do you solve when there isn't a number next to x

    • @tamanna394
      @tamanna394 6 років тому

      X always has a co efficient of 1.

  • @itsmehandrew2731
    @itsmehandrew2731 3 роки тому +2

    Who else is trying to figure this out in 6th?

  • @morislavamedina8096
    @morislavamedina8096 5 років тому

    Thanks