When Do You Need to Change Inequality Signs?

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  • Опубліковано 7 січ 2025

КОМЕНТАРІ • 640

  • @freedom8691
    @freedom8691 4 роки тому +150

    Thank you. It was so clear and clean explaining. You are amazing teacher.

    • @maryhanlin1364
      @maryhanlin1364 3 місяці тому

      I'm in Math 090 at my community college in prep for math 123 next semester

  • @happiestlaurenl
    @happiestlaurenl 4 роки тому +71

    extremely helpful, I had wish I had watched this sooner into struggling with my homework. Explained well and at a good speed

  • @ha-nh2uf
    @ha-nh2uf 4 роки тому +118

    PLSS THIS IS SUCH CUTE EXPLANATION I LOVE IT HERE

    • @EricBuffington
      @EricBuffington  4 роки тому +14

      So glad it helped! :) Thanks for the comment!

    • @kvsmeg4662
      @kvsmeg4662 2 роки тому +2

      @@EricBuffington you are true

    • @yashraut3453
      @yashraut3453 2 роки тому

      @@EricBuffington hi

  • @allidoiscomment6774
    @allidoiscomment6774 5 років тому +52

    I have algebra 2 and my teacher just started teaching us and didn’t mention this. Thanks for the help

  • @teresahill9657
    @teresahill9657 4 роки тому +36

    As a parent this was very helpful. My child is in 7th grade at Del Valle ISD and her teacher doesn't explain this and she is lost and failing tests. Her teacher blames the students why they fail tests. Since are Elearning now I can show her this because this is what she is doing in Math now. She had a test yesterday with this and missed the questions and failed the test.

    • @EricBuffington
      @EricBuffington  4 роки тому +12

      I'm so sorry to hear she is struggling. Perhaps looking for a cyber charter school might be helpful for her. Agora Cyber Charter School is very good. At Agora they have certified teachers who walk students through the problems in live sessions and are amazing. Full disclosure, I'm one of the assistant principals at the Middle School in Agora so I am biased. :) Either way I'm so glad this video was able to help! Keep watching and have a wonderful day!

    • @teresahill9657
      @teresahill9657 4 роки тому +12

      @@EricBuffington Thank you for your input. I wished teachers would do more live sessions.

  • @dmitryr9613
    @dmitryr9613 3 роки тому +13

    I wish you'd covered the case when we're multiplying or dividing by x, as in that case whether the sign switches depends on whether x is a positive or negative number.

  • @joanmaesalvador7419
    @joanmaesalvador7419 2 роки тому +7

    Bro, you're not just a great teacher, you have awesome vibes as well!!!

  • @codingdens
    @codingdens 3 роки тому +12

    Thank you so much Eric,. I was preparing for SAT and i saw myself doing dumb inequality mistakes and i just searched it and led it to you and it's crytal clear tho....🥰🥰

  • @nidhidodiya292
    @nidhidodiya292 4 роки тому +12

    It was too helpful..
    These type of helping videos are present rarely for free !
    Thanks to explain like a student !!

  • @Ninnee644
    @Ninnee644 3 роки тому +4

    Thank you! Before I came across your video I was thoroughly confused by other tutors!! Now it's finally clear 🙂

  • @memorylane-tr5pn
    @memorylane-tr5pn 5 місяців тому

    This has always been my doubt while solving inequalities.. and you just literally cleared it in 7 mins ! Thank you sooo much

  • @SONPARITV
    @SONPARITV Місяць тому +1

    Extremely helpful 😊 as none has done a video like this thanks so much

  • @ZulerKasoLao
    @ZulerKasoLao 2 місяці тому

    Teachers taking 2 hours to teach a simple lesson on this (this man taking a solid 30 seconds explaining this) love this guy 10/10 would watch his content

  • @cosmiclives111
    @cosmiclives111 3 роки тому +4

    Omg thank you soooo much
    This literally save my life cause i have my finals and don't even know a bit about it but this just save me

  • @zobito1227
    @zobito1227 4 роки тому +110

    pov: your teacher sent you this

    • @evansmithvlogs764
      @evansmithvlogs764 3 роки тому

      Yep

    • @rharini1514
      @rharini1514 3 роки тому +12

      Wish my teacher had!!!
      But he didn't and I had to figure it out myself when I was stuck with a question..
      I feel ashamed that I got to know this only in grade 10 ie. 15years old..
      But Thank God I found this 🥲😌
      Edit: I didn't know that we even ad to change inequality symbols when we divide..

    • @TeoVVS
      @TeoVVS 3 роки тому +4

      @@rharini1514 im in 7th learning this rip

    • @sanjayrajan8756
      @sanjayrajan8756 2 роки тому +5

      Pov: you sent this to your teacher.

    • @jennifer2087
      @jennifer2087 Рік тому +1

      Pov: your trying to figure how to do the homework you teacher gave you

  • @slyvo5318
    @slyvo5318 5 років тому +29

    really helpful, if only my teacher could explain it to me this simply in 8 min :)

    • @EricBuffington
      @EricBuffington  5 років тому +2

      Thanks for the comment! I'm glad this was helpful for you! :)

    • @slyvo5318
      @slyvo5318 5 років тому +1

      This is 100% gonna help me get those extra marks in my exam tomorrow 👍

  • @rahulsinghyadav8093
    @rahulsinghyadav8093 3 роки тому +3

    What a lovely voice& speaking style .. I love ur speaking style ❣️🙏

  • @jaingomes4820
    @jaingomes4820 3 місяці тому

    Thanks, it really helped me a lot. I’ve always faced problems doing inequality maths but now I guess I’ve got the point.

  • @BeulahKuku
    @BeulahKuku 5 років тому +37

    This is the first time it's been made clear to me and I'm already doing a level maths before I finally got it😂

    • @EricBuffington
      @EricBuffington  5 років тому +2

      So glad it helped! :)

    • @Quiyum
      @Quiyum 5 років тому +2

      Divinity T57 Lmao same! I have my A level exam 2 days later and always get confused on inequalities

    • @syedjeelani2138
      @syedjeelani2138 5 років тому

      @@EricBuffington thanks

    • @carolinaalves239
      @carolinaalves239 4 роки тому

      Sameeeee! I’m taking advanced maths and I swear to godddd

  • @lalaarwa
    @lalaarwa 2 роки тому

    bro Im watching this 4 years after this video was published thank you so much eric you deserve a doctor degree from this completely clear explanation that made 100% of these inequalities easyyyyyyy

  • @lachhmangupta7408
    @lachhmangupta7408 Рік тому +2

    Your explanation is next level. I understood the concept. Thank you very much ❤

  • @lemond97
    @lemond97 4 роки тому +8

    Thank you so much! This really helped. Amazing teaching!!

  • @Samantha0702
    @Samantha0702 7 місяців тому

    THANK YOU SO MUCH I HAVE MY O LEVELS TODAY AND THIS HAS CLEARED A LOT OF CONFUSIONS THANKS A BUNCH!

  • @karthik-xp4ji
    @karthik-xp4ji 2 роки тому

    Thanks!

  • @aimenpervaiz147
    @aimenpervaiz147 4 роки тому +2

    Commendable sir!! It really worked with my exams..

  • @gamingxramyia8040
    @gamingxramyia8040 3 роки тому +2

    Thank you for this video I have a test on interval notations and this helped me out!!!

  • @khushigupta127
    @khushigupta127 2 роки тому +2

    Thankyou sir...you cleared my doubts very clearly

  • @telansaquamarineandanimali8336
    @telansaquamarineandanimali8336 3 роки тому +1

    I think you are the best on teaching us math so cool and you teach us so smooth

    • @EricBuffington
      @EricBuffington  3 роки тому

      Seriously Thanks so much! I hope you are having the best day! :)

  • @ShellyWellyisbored
    @ShellyWellyisbored 5 років тому +12

    Thank you so much!! I needed to understand this but didn’t until I came across your video! I’m in my mid 40’s and back in school taking pre-algebra!

    • @EricBuffington
      @EricBuffington  5 років тому +1

      That's great that you are back in school! I hope this helped! Thanks for watching and commenting! Good luck in school!

  • @ahmedsiddiqui324
    @ahmedsiddiqui324 4 місяці тому +1

    Sir is it true that this rule will be applied only if we are performing first step of solving an inequality by multiplying or dividing with negatives...?

  • @scrawnysensei4742
    @scrawnysensei4742 5 років тому +2

    Thanks I got a Starr test and now will be sure to answer this probably correctly

  • @abhijittripathi9339
    @abhijittripathi9339 2 роки тому +1

    Thank you . This video is helping me to clearing my doubt . YOU ARE AMAZING .

  • @paulinafranchini1908
    @paulinafranchini1908 2 роки тому +1

    Thank you. Great video! Easy, simple and clear!! Explained at perfect speed!

  • @cutegirl454
    @cutegirl454 3 роки тому +3

    Thank you, I finally understood it. This is really helpful.

  • @pandagamer2187
    @pandagamer2187 Рік тому +2

    Grateful to your explaination
    By an Indian student

  • @jillianpick9760
    @jillianpick9760 Рік тому +1

    This was so helpful for my math 9 class in Cambridge, NS CANADA

    • @EricBuffington
      @EricBuffington  Рік тому

      So glad it helped my Canadian friends out east! All the best!

  • @I.needed_a.handle_name
    @I.needed_a.handle_name Місяць тому

    Thank you for taking the extra step and explaining how it works :D

  • @aathityan3057
    @aathityan3057 2 роки тому

    Actually none of my teachers taught me why that works like it works, u r awesome dude !!

    • @EricBuffington
      @EricBuffington  2 роки тому

      Thanks so much! I'm glad this video helps!

  • @zarif.k5807
    @zarif.k5807 2 роки тому +1

    Thanks it actually helped a lot I didn’t pay attention in my math class and I had math quiz this helped a lot thanks👍🏽👍🏽

  • @ramuprasadsahoo1048
    @ramuprasadsahoo1048 2 роки тому +1

    Tomorrow I have my maths exam...thanks a lot.. excellent 👍 explanation

  • @redsaddy7734
    @redsaddy7734 3 роки тому

    Finally! Thank you so much. I sometimes can't undrstand the book.

  • @manubhav8761
    @manubhav8761 3 роки тому +2

    A lot of thanks to you from INDIA🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳

  • @sansand1236
    @sansand1236 3 роки тому +1

    Thank you very much! I was confused at first and now I understand.

  • @potatopc4489
    @potatopc4489 3 роки тому +2

    It helped a lot...thank you 🙏🙏

  • @sarikarathi993
    @sarikarathi993 4 роки тому +1

    I always had confusion with this.....but now it is clear.... thank you

  • @mygoofypets2409
    @mygoofypets2409 2 роки тому +1

    Thank you so much. You explained this clearly to understand.

  • @alex_turing
    @alex_turing Рік тому

    You also switch when you reverse the fractions, for example, 2 < 3 1/2 > 1/3

  • @cottoncandy9355
    @cottoncandy9355 3 роки тому +2

    Thank you very much
    God bless you and your family ❤️

  • @bhimrajshelar8665
    @bhimrajshelar8665 3 роки тому +2

    Thanks Sir🙏🙏🙏🙏🙏🙏🙏🙏.Love From India🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳

  • @souravkumarsingh09
    @souravkumarsingh09 10 місяців тому +1

    If both side is divided or multiplyed by +ve number, will the sign change??

  • @raghavsharma8861
    @raghavsharma8861 5 років тому +5

    Love from India for you sir

    • @EricBuffington
      @EricBuffington  5 років тому

      Thanks for sending the love! Right back at you! :)

  • @bhavnathakur7199
    @bhavnathakur7199 2 роки тому +1

    Very good explanation .. this is really very helpful for me solving inequality problems

  • @Thomas-qj8dv
    @Thomas-qj8dv 4 місяці тому

    exactly what i needed, thanks to you my good sir

  • @ashmitakhan5763
    @ashmitakhan5763 11 місяців тому

    It's been a year, and idk why I didn't understand this. Thanks man!

  • @mdahsanakandoapurbo3409
    @mdahsanakandoapurbo3409 2 роки тому +1

    Thanks a lot for the lovely explanation 😊

  • @miss.perfecto7675
    @miss.perfecto7675 3 роки тому +1

    Amazing👍👍👍👍👍👍 love the way to teach... Thankss man!

  • @pastorrenephillips660
    @pastorrenephillips660 2 роки тому +1

    Clear, engaging, and succinct!

  • @rajarshimaji9983
    @rajarshimaji9983 4 роки тому +1

    You explain so well

  • @roblox_yt3724
    @roblox_yt3724 5 років тому +4

    Thank you dude I have been failing this lesson because of flipping the wrong signs now I will do better. Thanks

  • @Sunil-cc4er
    @Sunil-cc4er 2 роки тому +2

    Wow! Great explanation

  • @alesiakazvr5378
    @alesiakazvr5378 3 роки тому

    Wow this is going to help a lot on the test that I have today!!! TYSM (you are a great teacher)

  • @florahflo495
    @florahflo495 Рік тому +1

    Thank you so much. This helped me a lot❤

  • @prabhatipradhan5313
    @prabhatipradhan5313 8 місяців тому

    Yes ❤!!!
    Obviously this is very helpful . Because of this switching inequality signs i was not able to understand my maths and lot of doubts came to my mind & that made many problems😏. But when i searched for this in google i got this vdo 😊 & this really helped ❤
    Thank you so much for your help by this vdo❤

  • @sunnahwear7540
    @sunnahwear7540 4 роки тому +1

    Great video dude keep up the good work

  • @m3g0mia
    @m3g0mia 4 роки тому +1

    still trying haven't done any problems with the "move the number" option so I feel slow on that one but the other two i see the problems and I now understand.... I'm doing mymathlab for algebra 1. Thanks man !

  • @risff4308
    @risff4308 Місяць тому

    Excellent, you save my exam ,

  • @chinedumekpemiro59
    @chinedumekpemiro59 Рік тому

    Thank you. Your explanation is very clear.

  • @vaibhavsharma4311
    @vaibhavsharma4311 3 роки тому +2

    Thank you very much sir you are a life savior !

  • @devidevatha
    @devidevatha 2 роки тому +2

    I found this helpful!

  • @dtrill7009
    @dtrill7009 4 роки тому +1

    Thankyou so much I was confused with 9 minutes left to finish the test 😅😂

  • @nohdahyun3516
    @nohdahyun3516 2 роки тому +1

    It was so helpful...u clearly explained every single step...Very Nice video it helps me a lot ..Thank a bunch🌟☄

  • @geetha8480
    @geetha8480 2 роки тому +1

    Thank you so much😊😊it helped me a lot for my exam

    • @EricBuffington
      @EricBuffington  2 роки тому

      Most welcome 😊

    • @geetha8480
      @geetha8480 2 роки тому

      @@EricBuffington sir can u please make some vedios about how to do the basic operations of math in a faster way

    • @geetha8480
      @geetha8480 2 роки тому

      @@EricBuffington 😊 a fan from india

  • @christopherevansanders3629
    @christopherevansanders3629 2 роки тому

    There are two main problems with math and numbers in general. The first is negative numbers which should be labeled as opposite instead of negative because zero is zero there can be nothing less than none even if you had zero dollars and owed someone infinity dollars you may be behind on having something more than what they will receive from you but when the money goes from you to them your supposed negative is still their positive so oppositional computation would better explain and define what the reality of it is. Second is every numerical designation, quantity and or value is used as( 1 = one of any given object that has at least a single representation of it's self) but the flaw is in using this to label a very large but finite group of objects (people, places, things, and any and all forms you can imagine of all those, some of those, and in between those groups but the absence of them can not be one of nothing so defining things as 1 though each one can be identical to different in size, shape, density, elasticity, visuality, tactility and so on gives to the one thing that is inevitable are minute we feel flaws in calculations when all those things and all the universe interacting with them on any and all levels, planes, and dimensions of that whole object instead of that 1 object and as numbers can only go in one true direction those minute flaws add up till a day arrives where the asteroid hits your house instead of missing the planet by how ever many miles that scientist were so sure of because it works for now Examples being: absolute zero being less than zero, opposites attract, I had another example but lost it in thought but in a graph that shows wins vs. losses both numerical designations are positive numbers So that would mean that negative is only a point of view that we have used to manipulate math into our favor which is still a positive lol

  • @parasc2152
    @parasc2152 3 роки тому +2

    Thank u u thought me beter than my maths teacher

  • @anuragmaji9075
    @anuragmaji9075 3 роки тому +1

    Hi I am from India.....This video is very helpful ❤️

  • @kvsmeg4662
    @kvsmeg4662 2 роки тому +2

    Nice one sir it helped me a lot in last day revision thankyou so much ❤️

  • @Jitendra.Kumar.
    @Jitendra.Kumar. 2 роки тому

    Finally this video cleared my doubt

  • @sahithjasti4212
    @sahithjasti4212 Рік тому

    this video was extremely helpful

  • @misbali8098
    @misbali8098 7 місяців тому

    You actually showed the scenarios in which the inequality sign changes but why does it change in the first place is unclear. Maybe talk about how when you multiply both sides of an inequality by a negative number, you reverse their positions on the number line. For example, if:
    2 < 3
    Multiplying both sides by -1:
    2 \times (-1) > 3 \times (-1)
    -2 > -3
    The direction of the inequality sign changes because multiplying by -1 reverses the order of the numbers. On the number line, -3 is to the left of -2, which means -2 is greater than -3.

  • @rharini1514
    @rharini1514 3 роки тому +1

    Your teaching was really good and plus points for the practice questions....➕➕
    I am gonna share this with my fellow classmates.😊😇

  • @shehanasagran1161
    @shehanasagran1161 3 роки тому +1

    2:31 what if the 20 in negative do I need to flip the sign?

    • @EricBuffington
      @EricBuffington  3 роки тому

      The number by itself does not matter as much as the number connected to the variable. So if the 20 was negative in this example the sign would still change because you are still dividing by -2.

  • @bhartikumari4188
    @bhartikumari4188 2 роки тому +2

    Very helpful............thanku sir

  • @palindrome06
    @palindrome06 2 роки тому

    Why do we just change the direction without adding/removing the equality? Shouldn't just < become >=, and ? If the idea is to "negate" it, then why don't we also add or remove the equality accordingly?

  • @m33sh50
    @m33sh50 2 роки тому +1

    Exactly what I needed thank you

  • @khushifatima9252
    @khushifatima9252 4 роки тому +1

    Excellent Explanation.....It was very helpful.
    Love from Pakistan 🇵🇰

  • @CouncilOfMemes69
    @CouncilOfMemes69 Рік тому +2

    Thank you
    Your a lifesaver

  • @jephthah2347
    @jephthah2347 4 роки тому +34

    I'm just knowing this and I have my GRE test soon. Shouldn't have skipped all those classes
    P.S This is a joke.... actually it is not ...help

    • @ongeziwemaliwa5950
      @ongeziwemaliwa5950 4 роки тому +1

      Lmao, felt

    • @lilymurfitt6187
      @lilymurfitt6187 4 роки тому +1

      bruh whyd you skip classes-
      just like draw or something and tune in every ten minutes. then consult your textbook for anything you missed. thats what i do every day and i have a b- in math so...

  • @user-nz4jq4hs8k
    @user-nz4jq4hs8k 4 роки тому +1

    this guy is the best get him to 100k please thanks.

  • @SeemaGupta-nv4lp
    @SeemaGupta-nv4lp 3 роки тому +1

    A very helpful video
    Love from India😊😊

  • @Liam-yw3ke
    @Liam-yw3ke 3 роки тому +1

    My question was answered in the first 20 seconds, nice

  • @abhishekvishwakarma8035
    @abhishekvishwakarma8035 Рік тому

    Thank man for Quick concepts clearness 🙏

  • @yuktha8675
    @yuktha8675 Місяць тому

    Thank you so much for this video it was very helpful 😊

  • @randkoja4432
    @randkoja4432 4 роки тому +2

    Thanks so much!💖 Great explanation.

  • @biswaranjanmohanty2750
    @biswaranjanmohanty2750 2 роки тому +1

    Thank you sir you are great 👍 love from India 🇮🇳🇮🇳

  • @purple1439
    @purple1439 3 роки тому

    Thanks for explaining most people don't bother going into detail

  • @WajidAli-gf3lk
    @WajidAli-gf3lk 2 роки тому +1

    Such a great helpful video.. Nice sir

  • @manavim3093
    @manavim3093 2 роки тому +1

    Tanksss 👍🏼 maths made easyy!!

  • @souravmahantaphysicssaldih2463
    @souravmahantaphysicssaldih2463 4 роки тому +1

    Outstanding Explaination Sir Thank you very much.

  • @deepi1723
    @deepi1723 3 роки тому +2

    It's really helpful😊

  • @KarmaTshering-t2v
    @KarmaTshering-t2v Рік тому +1

    Thank you sir
    Really good explanation