Learn how to solve absolute value inequalites by creating compound inequalities

👉 Learn how to solve multi-step absolute value inequalities. The absolute value of a number is the positive value of the number. For instance, the absolute value of 2 is 2 and the absolute value of -2 is also 2. To solve an absolute value inequality where there are more terms apart from the absolute value term in the same side of the inequality sign as the absolute value term, we first isolate the absolute value term. i.e. make the absolute value term the subject of the formula.
After isolating the absolute value term, we then create the two cases of absolute value problems: the positive case and the positive case. For the negative case, we flip the inequality sign. This results in a compound inequality which we then solve accordingly and graph our solution on a number line.
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Пікірлер: 204

  • @chrisbanas9118
    @chrisbanas91184 жыл бұрын

    Dudes on his phone?? Id give up my phone for years to have this man as my math teacher

  • @BepTweBot

    @BepTweBot

    4 жыл бұрын

    Chris Banas flipping same

  • @pilot4910

    @pilot4910

    3 жыл бұрын

    LOL he'd be the same kid claiming the teacher didnt teach well

  • @sunzalea3257

    @sunzalea3257

    3 жыл бұрын

    lets put this in perspective now

  • @dazzlingforests1373

    @dazzlingforests1373

    3 жыл бұрын

    Ugh fr mine can’t even teach

  • @chrisbanas9118

    @chrisbanas9118

    3 жыл бұрын

    @Colton Sergio okay clown

  • @dylanward4512
    @dylanward45124 жыл бұрын

    That dude got hella markers

  • @lavenderbex

    @lavenderbex

    4 жыл бұрын

    i notice as his videos go throughout the years he gains more and more markers now he got like every single color lol you can see his 2012 vids he got like 5 now he got like 30

  • @vay5540

    @vay5540

    3 жыл бұрын

    He’s building an army

  • @Vegetable789

    @Vegetable789

    3 жыл бұрын

    Damnnn

  • @novembertheduck3575

    @novembertheduck3575

    2 жыл бұрын

    math teacher moment

  • @MrMsMe77
    @MrMsMe776 жыл бұрын

    It's helpful when students ask questions because sometimes I feel a little bit confused. Math isn't my strength but you teach it very well. I enjoy the setting of the video. Thanks for teaching me math!

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    you are very welcome! live class interaction

  • @alch8485

    @alch8485

    11 ай бұрын

    @randomthings6255 that's so cool dude

  • @jeeeducational5623

    @jeeeducational5623

    5 ай бұрын

    come to india , we learn these when we are 8 yrs old . not even kidding

  • @DetectiveHunter

    @DetectiveHunter

    Ай бұрын

    @@brianmcloganMan you do KZreadrs asking video session live please I am failing math

  • @Milotote1
    @Milotote14 жыл бұрын

    Can u teach my teacher how to teach?

  • @dazzlingforests1373

    @dazzlingforests1373

    3 жыл бұрын

    YES

  • @cashcollectionn
    @cashcollectionn3 жыл бұрын

    Why did I learn more in this 10 minute video then what I've learned in my last 3 Algebra 2 classes? lmfao I hate school

  • @andersferrell5080

    @andersferrell5080

    3 жыл бұрын

    facts bro

  • @dazzlingforests1373

    @dazzlingforests1373

    3 жыл бұрын

    lollll same

  • @raymaldonado161
    @raymaldonado1613 жыл бұрын

    I would give up my phone for a year to have this guy as my personal math tutor, he seems like the best teacher ever.

  • @hallegarcia8256
    @hallegarcia82566 жыл бұрын

    taking an online algebra class and your videos are a lifesaver

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    happy to be there for you.

  • @fareselkholy6208
    @fareselkholy62086 жыл бұрын

    teacher your sooo helpful im in grd 7 and i got 98% in math just by watching your videos. im happy that i found a guy like u in youtube. I think your the best online teacher EVER. Bottom line, THANK YOU. :)

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    you are very welcome Fares! happy to be able to help you out!

  • @killeralexio

    @killeralexio

    4 жыл бұрын

    how the hell are u doing Alg 2 in 7th grade?

  • @elijahsichitalwe5410

    @elijahsichitalwe5410

    4 жыл бұрын

    U are great

  • @princemorris7749

    @princemorris7749

    4 жыл бұрын

    Your teaching is awesome and helpful, thanks alway.

  • @dosonfns

    @dosonfns

    4 жыл бұрын

    In my school it’s algebra 1 and 7th graders that are in the double advanced can be in it and I’m in 8th and I’m advance and I’m in it

  • @kristinalynn7286
    @kristinalynn72864 жыл бұрын

    Finally someone who is thorough instead of teaching basics over and over again

  • @jamesh1169
    @jamesh11693 жыл бұрын

    Thank you, i was struggling so hard with this and you explained it perfectly.

  • @Luhtwixzy
    @Luhtwixzy4 жыл бұрын

    Saved my life I am so bad at absolute values and this really just helped me prepare for my test tomorrow, ur awesome bro

  • @mcp0y3
    @mcp0y33 жыл бұрын

    Thank you for taking the time to teach this. Your videos have helped my son tremendously.

  • @morgano4555
    @morgano45556 жыл бұрын

    "the distance KAYLEE from 3" XD

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    😀

  • @underthehood6206
    @underthehood6206 Жыл бұрын

    I know you probably won't see this but this video helped me so much. I was so stressed about solving absolute value inequalities until I found this video and it makes sense.

  • @berserkexe
    @berserkexe3 жыл бұрын

    This videos still help me to this days. Thank you so much.

  • @C3yl0
    @C3yl04 жыл бұрын

    Beautiful explained! Thanks ❤️

  • @josefinaarnold6583
    @josefinaarnold65833 жыл бұрын

    Thank you! This was perfect for helping me remember math from years ago to help my high schooler.

  • @ritesha8050
    @ritesha80505 жыл бұрын

    in my class pupils ask such questions to make fun of teacher. 3:11

  • @user-pb9hv8dw2p
    @user-pb9hv8dw2p4 жыл бұрын

    I just realized how many markers he has dang he stocking up

  • @theesunnlightt2268
    @theesunnlightt22684 жыл бұрын

    Thanks Brian... you are awesome. I really appreciate it.

  • @faysalarab
    @faysalarab4 жыл бұрын

    Thank you now I understand inequalities with absolute value.

  • @kayannhamilton5434
    @kayannhamilton54344 жыл бұрын

    You're a great teacher!

  • @silverdandelions1908
    @silverdandelions19083 жыл бұрын

    thanks for teaching me when my teacher cant. your videos really help me. keep up doing the good work.

  • @frenkyb123
    @frenkyb1234 жыл бұрын

    Very good explanation, sir. Thanks a lot.

  • @crytonsinyangwe4739
    @crytonsinyangwe47394 жыл бұрын

    Thanks for your great explanation am really humbled 🙏

  • @georgedyer5979
    @georgedyer59794 жыл бұрын

    I love you. You have helped immensely.

  • @ioannaathineos5269
    @ioannaathineos52694 жыл бұрын

    Amazing. Best teacher.

  • @hangfire5005
    @hangfire50054 жыл бұрын

    Really good explanations here!

  • @viacheslavsavateev6522
    @viacheslavsavateev65224 жыл бұрын

    3:16 So you don't have a question? - That's not a question...

  • @THEORD3REMP1RE

    @THEORD3REMP1RE

    3 жыл бұрын

    Bruh why did he erase it ._______________________________.

  • @FireLordJD
    @FireLordJD4 жыл бұрын

    You rock! You've helped me pass a lot of my tests in college. Thank you!

  • @enchantedodin9484

    @enchantedodin9484

    3 жыл бұрын

    Lmao college? This is my beginning of the year 9th grade math

  • @FireLordJD

    @FireLordJD

    3 жыл бұрын

    @@enchantedodin9484 bro I'm an English major lmao

  • @bobslobgaming5527

    @bobslobgaming5527

    9 ай бұрын

    @@enchantedodin9484 i’m doing this in 8th bru

  • @irc-
    @irc-6 жыл бұрын

    Thanks for the help!!

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    you are very welcome!

  • @katarinaismia
    @katarinaismia4 жыл бұрын

    dudes got a good ass teacher and be on their phone during class

  • @davidhuynh3393
    @davidhuynh33932 жыл бұрын

    Oh man, been burying my head in the sand, but it was phenomenal that you could prove to me the difference o\ abs. Value & inequalities. 👏🏻

  • @richneal4
    @richneal43 жыл бұрын

    Thanks for helping me with my virtual learning it really helps

  • @morganb5239
    @morganb52393 жыл бұрын

    thank god for this man when we’re home learning and our math teachers are too old to know how to do this

  • @bradydion345
    @bradydion3453 жыл бұрын

    I LOVE THIS GUY HES SAVING MY GRADE

  • @marieedward7941
    @marieedward79413 жыл бұрын

    I have a Unit 2 test and not trying to hate but my teacher didn't teach us anything about absolute Values so THANK YOU SO MUCH!!

  • @marisalewellen3134
    @marisalewellen31345 жыл бұрын

    I am taking algebra 1 this year as a freshman and your videos are really helpful.

  • @killeralexio

    @killeralexio

    4 жыл бұрын

    lol im taking Alg 2 as a freshman

  • @Yoh_Mama

    @Yoh_Mama

    4 жыл бұрын

    Am taking algebra 1 thousand in 26 grade

  • @stxclout3247

    @stxclout3247

    4 жыл бұрын

    Alexio who gives a shit

  • @higuys4897

    @higuys4897

    4 жыл бұрын

    Bro I’m taking it in 7th grade😭

  • @jenniferrebollar7369
    @jenniferrebollar7369 Жыл бұрын

    What a goat!!!! thank you for helping me pass my college math courses!

  • @AnonymousTaco3472
    @AnonymousTaco34724 жыл бұрын

    This was really helpful

  • @sherwinlogan3939
    @sherwinlogan39393 жыл бұрын

    Well done!

  • @zomb7138
    @zomb71384 жыл бұрын

    bro, why do I need a teacher when I have you

  • @rejectionz1517

    @rejectionz1517

    4 жыл бұрын

    Zomb lmao but you can’t ask him questions

  • @zomb7138

    @zomb7138

    4 жыл бұрын

    I don’t need to ask questions

  • @Milotote1

    @Milotote1

    4 жыл бұрын

    Zomb 😂😂

  • @evangelistadante6643
    @evangelistadante66434 жыл бұрын

    You are so helpful

  • @AlexCarsToys
    @AlexCarsToys5 жыл бұрын

    you are a legend!

  • @MikeMike-yc8gg
    @MikeMike-yc8gg4 жыл бұрын

    5:09 , 5:54 -- big difference when setting our " two cases " ('05 important thing to remember when "graphing an "AND" 9:34 graphing our answers

  • @fireball0762
    @fireball07624 жыл бұрын

    i don't know if you read these things, but i'm a substitute with a bunch of areas on the teaching license. I want to add high school math, and if i can teach half as good as yourself i think the students would come alive for math. In minutes i learned things that some of them take weeks to comprehend. (but i'm a geek that way). All teachers should be like you. I'm assuming you are high school? I know it is also what the community college calls precalculus algebra (I used to teach English in Comm at the local one in my area, but i like teaching high school more)

  • @darshpatel9756
    @darshpatel97563 жыл бұрын

    lol these videos are gold during virual learning thank you so much

  • @joshuajeremiahjr3331
    @joshuajeremiahjr3331 Жыл бұрын

    You sir are awesome, I learn so much

  • @imathcambo1012
    @imathcambo1012 Жыл бұрын

    Good Job Sir, Thanks!!

  • @pranavi1949
    @pranavi19492 жыл бұрын

    When you hear people coughing and no one thinks of corona

  • @JEEwithME
    @JEEwithME Жыл бұрын

    Thankyou so so much

  • @sampanicker4725
    @sampanicker47253 жыл бұрын

    Very helpful video. From India

  • @SaritaKumari-iz6tr
    @SaritaKumari-iz6tr3 жыл бұрын

    Thanks Brain

  • @greggyyyy
    @greggyyyy3 жыл бұрын

    I wish my teachers could explain like this

  • @lucc6619
    @lucc66195 ай бұрын

    You know this is so much better than watching my grade 12 teacher sit in the back of the class on an overhead projector go through the problem in a monotone voice. Saying you should just understand what's going on.

  • @Dharmarajan-ct5ld
    @Dharmarajan-ct5ld3 жыл бұрын

    Dear Brianmclogan, if you see modulus as distance and use number line you could have done in 1/4th time, space and labour. It would have been more elementary. Kindly consider

  • @cohessiveorder6679
    @cohessiveorder66792 жыл бұрын

    My professor is just over complicating these things. Thank YOU!

  • @brianmclogan

    @brianmclogan

    2 жыл бұрын

    You are very welcome!!

  • @rigriggerson4949
    @rigriggerson49493 жыл бұрын

    Would the interval notation be [-3.5,-1.5]?

  • @auguststas7770
    @auguststas7770 Жыл бұрын

    I wish I had that kind of teacher

  • @langelihlezwane8121
    @langelihlezwane81212 жыл бұрын

    Great lesson sir, significantly helpful . Also astonished at the fact that you were part of J.A .

  • @mou712
    @mou7122 жыл бұрын

    I'm a new subscriber from Algeria

  • @arlilazo3800
    @arlilazo38004 жыл бұрын

    Thanks

  • @Spencii1
    @Spencii13 жыл бұрын

    learned more in 1 minute than my teacher taught us in a whole hour

  • @linusbao8650
    @linusbao86505 жыл бұрын

    I'm a lil confused about the "and/or" thing, isn't that very dependent on which side you happen to choose to write the variable on. For example, using the vid's inequality: A) 3|2x+5|+22 inequality A and inequality B are the same thing, but according to this vid the top inequality would be "and" while the bottom one would be "or". What am I doing wrong?

  • @linusbao8650

    @linusbao8650

    5 жыл бұрын

    oh, is it the inequality sign of the isolated absolute value form of the inequality that determines if it's "and" or "or"? That would make sense if so.

  • @zarartss
    @zarartss Жыл бұрын

    man I rlly wish u were my algebra teacher, I mean at least I have this yt account to go to whenever i'm confused 😭 thank you so much

  • @urmomcantcook
    @urmomcantcook3 жыл бұрын

    what happens if I have a inequality and at the front of the problem I have 3 + 5 l2x + 3l = 12, would I combine those two terms, or would I subtract 5 and then divide by three

  • @nx_mo258

    @nx_mo258

    2 жыл бұрын

    I think its add the like terms first nd then divide 8 by both sides

  • @superwomanshellyelz6523
    @superwomanshellyelz65234 жыл бұрын

    Lol “that’s a zeee OMG 🙄”.

  • @midwestrailroadproductions8116
    @midwestrailroadproductions81165 жыл бұрын

    Where do you teach high school math, Mr. McLogan?

  • @brianmclogan

    @brianmclogan

    5 жыл бұрын

    Jacksonville Florida

  • @nuno6203
    @nuno62033 жыл бұрын

    better than my teacher she just puts up the work and a video that isn't her explaining how to do it but hey that's how I found you

  • @zman9315
    @zman93155 жыл бұрын

    Why did you switch the inequality sign at the end for both equations before graphing? And when do I need to do this.

  • @brianmclogan

    @brianmclogan

    5 жыл бұрын

    any time you have an "and" inequality

  • @asecondaday1138

    @asecondaday1138

    5 жыл бұрын

    @@brianmclogan so, you don't flip the sign for an "or" inequality?

  • @killeralexio

    @killeralexio

    4 жыл бұрын

    he switched it because like he said, (example) |2x-3|

  • @user-kx1ng1pk8m
    @user-kx1ng1pk8m3 жыл бұрын

    Thx

  • @japhethmulig7919
    @japhethmulig79193 жыл бұрын

    Excuse me sir what if both sides of the iniquity is an absolute value? What should I do?

  • @davidarechiga1233
    @davidarechiga1233 Жыл бұрын

    So much less anxiety after watching this!

  • @4pd4stantone
    @4pd4stantone5 жыл бұрын

    Just take his phone away please

  • @rosaliakasolo2315
    @rosaliakasolo23153 жыл бұрын

    I think..... his very bright t-shirt makes everything easy. OMG, he is damn good.

  • @calebweissraaberg2813
    @calebweissraaberg28135 жыл бұрын

    Man you are done lol.

  • @yamro1180
    @yamro11803 жыл бұрын

    I think we have to do case1 and case 2 Mr

  • @aashitAgrawal
    @aashitAgrawal6 жыл бұрын

    can you please give me the link of you solving absolute value inequalities containing quadratic equations. please.. love you teaching way.💗

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    ahhh I do not have any of those, just remember to set up two cases when the abs is isolated, if you take the square root remember to flip the inequality sign for the negative case

  • @aashitAgrawal

    @aashitAgrawal

    6 жыл бұрын

    Oh!.... Thanks I got it how to solve...thanks you so much.......Man I wish you were my maths teacher♥

  • @brianmclogan

    @brianmclogan

    6 жыл бұрын

    happy to help you out! keep up the hard work Asshit

  • @Josh-xo8wd

    @Josh-xo8wd

    5 жыл бұрын

    @@brianmclogan Uhhhhhhh. It's not "Asshit", but "Aashit"... 😂

  • @euph0rya672

    @euph0rya672

    4 жыл бұрын

    Brian McLogan assshit

  • @simontodorovic287
    @simontodorovic2874 жыл бұрын

    First of all ladies and gentlemen - Brian Mclogan Welcome ladies and gentleman - Brian Mclogan Ladies and gentleman listen carefully - Brian Mclogan Before we proceed, ladies and gentleman - Brian Mclogan So do you have any questions ladies and gentlemen? - Brian Mclogan :D

  • @amairivas6310
    @amairivas63104 жыл бұрын

    Is it me, or he sounds a lot like Nick from New Girl??? :o

  • @stupidcakeboy
    @stupidcakeboy5 жыл бұрын

    im confused it says junior achievement but the students sound like adults.

  • @---lq7id

    @---lq7id

    4 жыл бұрын

    stupidcakeboy ?? The students sound like normal high school kids. And also i dont think his shirt and the class he teaches correlate

  • @lukevinson335

    @lukevinson335

    3 жыл бұрын

    No they dont

  • @uhmitssami8122
    @uhmitssami81224 жыл бұрын

    My math teacher is sending us your videos for online classes 😂

  • @urmomcantcook

    @urmomcantcook

    3 жыл бұрын

    that's a whole mood

  • @hqs9585
    @hqs95857 ай бұрын

    perhaps a better way to explain the sign is as follows: |2Z+5| -2 (inequality multiply by a negative factor reverses the sign. That is it!

  • @BenjaminMScott
    @BenjaminMScott3 жыл бұрын

    What the number on the right side of the inequality is negative

  • @brianmclogan

    @brianmclogan

    3 жыл бұрын

    same process

  • @BenjaminMScott

    @BenjaminMScott

    3 жыл бұрын

    @@brianmclogan thank you so much

  • @hottestfuzz7723
    @hottestfuzz77233 жыл бұрын

    Be my 8th grade advanced math teacher. You do the best job I've ever seen. The only way I'm going to pass my test is through you. Your videos always help and even 6 years later your still making my life easier. THANKS!!!!!

  • @BepTweBot
    @BepTweBot4 жыл бұрын

    wow

  • @Vegetable789
    @Vegetable7893 жыл бұрын

    Instructions unclear, made my grandma a horse.

  • @brianmclogan

    @brianmclogan

    3 жыл бұрын

    Dang

  • @Noah26271
    @Noah262714 жыл бұрын

    Senon put that motherfucking phone down this instant

  • @kristenbistrican2750
    @kristenbistrican27502 жыл бұрын

    Like if you’re here because most math instructors have trouble understanding that most students in a lower level math class in college are the students who have/had math anxiety and didn’t perform well in high school math classes and that students who do have math anxiety tend to also have interpersonal anxiety and feel like they cannot stop a class to tell a teacher to slow down or go back out of fear of looking stupid so you end up lost during lecture. So you go to KZread to watch videos to understand better and at your own pace. Heyyyy eyyyyyy

  • @oc121184
    @oc121184 Жыл бұрын

    Take his phone!

  • @vincent2826
    @vincent2826 Жыл бұрын

    Great video it helped I'm assuming the 2 numbers can also go the opposite direction on other equations

  • @estherliu351
    @estherliu3514 жыл бұрын

    10:14 shouldn't it be closed, not open? I got really confused for a sec there.

  • @Yoh_Mama

    @Yoh_Mama

    4 жыл бұрын

    Damit senon get off ur phone

  • @lavenderbex
    @lavenderbex4 жыл бұрын

    LMAO i woulda taken senons phone on sight

  • @tobgamerxt394

    @tobgamerxt394

    4 жыл бұрын

    in which minute

  • @sakethkoduri4009
    @sakethkoduri40094 жыл бұрын

    The kids in this class are so slow lmfao

  • @tatertotisgod
    @tatertotisgod4 жыл бұрын

    can i go to the bathroom please?

  • @ammarfawwaz8976
    @ammarfawwaz89765 жыл бұрын

    Quick/fast solve here 3|2x+5|+2

  • @theycallmealex454
    @theycallmealex4544 жыл бұрын

    You sound like Steve-O

  • @marinasabine
    @marinasabine5 жыл бұрын

    so many markers :v

  • @jellfamwali9280
    @jellfamwali92803 жыл бұрын

    I have a test in 25 mins

  • @AvatarRoku999
    @AvatarRoku9993 жыл бұрын

    I wonder why someone hasn't squared up with this dude he seems really condescending to his students

  • @desireeperez362

    @desireeperez362

    3 жыл бұрын

    They student was on his phone, I would of kicked him out and had his phone taken up