Learn how to evaluate a limit at infinity

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  • čas přidán 4. 09. 2016
  • 👉 We will explore how to evaluate the limit at infinity. When evaluating the limit at infinity or negative infinity we are interested to know where is the graph going right and left. This is also commonly explored as end behavior of the graph. Most of the examples we will look at will include rational functions. When looking at where the graph is going right or left we need to identify the horizontal asymptotes. We will also take a look at rational functions with roots where we will need to look at more closely at how the root behaves with the graph.
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    Organized Videos:
    ✅The Limit
    • The Limit
    ✅Evaluate Limits of Complex Fractions
    • Evaluate Limits of Com...
    ✅Evaluate Limits of Polynomials
    • Evaluate Limits of Pol...
    ✅Evaluate Limits of Rational Expressions
    • Evaluate Limits of Rat...
    ✅Evaluate Limits with Square Roots
    • Evaluate Limits with S...
    ✅Evaluate Limits with Trig
    • Evaluate Limits with Trig
    ✅Limits of Piecewise Functions
    • Limits of Piecewise Fu...
    ✅Evaluate Limits with Transcendentals
    • Evaluate Limits with T...
    ✅Evaluate Limits Difference Quotient
    • Evaluate Limits Differ...
    ✅Evaluate Limits from a Graph
    • Evaluate Limits from a...
    ✅Evaluate Limits of Absolute Value
    • Evaluate Limits of Abs...
    ✅Evaluate Limits of Square Root
    • Evaluate Limits of Squ...
    ✅Holes and Asymptotes of Rational Functions
    • Holes and Asymptotes o...
    ✅Learn about Limits
    • Learn about Limits
    ✅Find the Value that makes the Function Continuous
    • Find the Value that ma...
    ✅Is the Functions Continuous or Not?
    • Is the Functions Conti...
    ✅Evaluate Limits using a Table of Values
    • Evaluate Limits using ...
    ✅Evaluate Limits at Infinity
    • Evaluate Limits at Inf...
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Komentáře • 91

  • @na-edits
    @na-edits Před 3 lety +228

    I’m a senior now and I feel like I may as well ship you my diploma, been loving these videos for the past few years🙏🙏

  • @chrisc3358
    @chrisc3358 Před 6 lety +103

    you made this problem so easy and simple. Bless you!

  • @sydney_oj4819
    @sydney_oj4819 Před 8 měsíci +23

    Just started my first year at uni and calculus has NOT been kind to me thus far, but this video has helped a ton!!! You’ve explained infinite limits so succinctly and clearly, it’s really making my life a lot easier. Thank you :)

    • @chisomobeats
      @chisomobeats Před 7 měsíci +1

      That was me last year but with hardwork I managed and you can too 🙏🏿

    • @magneticpants3549
      @magneticpants3549 Před 7 měsíci

      Man, this is my upcoming lesson. I'm not sure what to feel about this. It doesn't look THAT terrible though

    • @potatogamergirl7104
      @potatogamergirl7104 Před 7 měsíci

      yea Im a sophomore in high school and I'm taking calculus. Im freaking out. Any tips?

  • @patrickoliver5397
    @patrickoliver5397 Před 3 lety +18

    this video was a more effective tool for my course than my modules that was worth a month of lessons🙆‍♂️🙆‍♂️
    Thanks for helping us 🙇🙇

  • @Linatube891
    @Linatube891 Před 10 měsíci +2

    The reason why i hate maths is b/c all terrible problems finaly become 0 or 1...that's it😂

  • @catekratovil9106
    @catekratovil9106 Před rokem +1

    oh my lord Brian ur a real one. Man got me through percale and now he is getting me through calc.

  • @LiquidenSSBM
    @LiquidenSSBM Před 3 lety +11

    had no idea dividing a number by a powered variable equals 0 :l college calculus sucks. Thanks for the explanation Mr. McLogan

  • @senkuplant3607
    @senkuplant3607 Před 2 lety +2

    I love the way this guy explains it!

  • @HardstuckIronAlaynac
    @HardstuckIronAlaynac Před 8 měsíci

    Hod bless you. I’ve been following for three years and you been my savior every time. Flawless and short execution while being simple to understand. I’m TRULY grateful

  • @JonahDeleseleuc
    @JonahDeleseleuc Před 3 lety +7

    hey i understand the procedure, but why do we divide by highest power first? wouldn't we be accomplishing the same thing if you just said the denominator as a whole was infinity?

  • @Jeetsukii
    @Jeetsukii Před rokem +4

    Waitt why do the variables raised to a power get evaluated to 0 automatically?

  • @brizaabundez5454
    @brizaabundez5454 Před 8 měsíci +4

    SIR I NEVER COMMENT BUT I JUST WANT YOU TO KNOW THAT IM CURRENTLY IN WEEK4 OF CALC AND WE'RE LEARNING THIS AND IVE SEEN SO MANY OF YOUR LIMIY INFINITY VALUES AND I JUST WANT YOU TO KNOW ITS SO HELPFUL IF I PASS THIS EXAM ITS BECAUSE OF YOU IF I DIDN'T FIND THIS VIDEO I WOULD NOT EVEN BE ABLE TO COMPLETE MY HOMEWORK THANK YOU

  • @christie2700
    @christie2700 Před rokem

    Thank you for explaining this short and sample.

  • @cutthroat399
    @cutthroat399 Před 3 lety

    Once again, You just saved my life.

  • @amieecoertzen9063
    @amieecoertzen9063 Před 7 měsíci

    Thank you, this a actually easy to understand

  • @justin6651
    @justin6651 Před 3 měsíci

    love your videos, keep it up!

  • @cuentaparaaprender5941

    thanks teacher, that is a nice exercice

  • @murphy839
    @murphy839 Před rokem +1

    BRO TEACHES BETTER THAN MY TEACHER TY I UNDERSTAND THIS

  • @fastquick4266
    @fastquick4266 Před rokem +3

    would plus or minus infinity have an effect on the answer? please help

  • @axxxc
    @axxxc Před 2 lety +2

    This video was a lifesaver right before my exam. I miss this lecture and I still got it

  • @jennaromines9583
    @jennaromines9583 Před 4 lety +2

    brian u a real one

  • @Eng_Aya
    @Eng_Aya Před rokem

    It can be solved using leading coefficient. Will be 5/7x^2 then replace x with minus infinity then goes to zero.

  • @officemagnolia2433
    @officemagnolia2433 Před 4 lety

    Thanks!

  • @gloryayegba7557
    @gloryayegba7557 Před rokem

    This really helped me alot in my assignment

  • @ahabchosen9692
    @ahabchosen9692 Před 4 měsíci

    Brilliant teacher

  • @asemkhaled9850
    @asemkhaled9850 Před 4 lety

    God bless you

  • @lilisilence9990
    @lilisilence9990 Před rokem +3

    Does this work with positive infinity?

  • @koopiexx
    @koopiexx Před 4 měsíci

    thank you, thank you, thank you!!! you might actually make me pass calc! you explain everything SO simply

  • @imsodamnlazy1191
    @imsodamnlazy1191 Před 2 lety +8

    im a grade 8 student but lately ive been really enjoying maths for some reason, its currently 2 am and ive just been binging these videos

  • @KumarDRs7
    @KumarDRs7 Před 6 lety +3

    Thanks bro I got it easily after you taught that ...problem......ossom

  • @craftzv4361
    @craftzv4361 Před 7 měsíci

    Wow , tysm🙏

  • @pikapikacheww4091
    @pikapikacheww4091 Před 4 lety +24

    So what's the different between + and - infinity in this steps?

    • @pixiedust1383
      @pixiedust1383 Před 3 lety +12

      i think it's just means if it's negative infinity you're going to the left of the graph and if it's positive infinity you're going to the right of the graph.

    • @faizzailan5936
      @faizzailan5936 Před 3 lety

      *from

  • @adeola.
    @adeola. Před 3 lety +1

    Is it the same solution for x->∞ ?

  • @baharosman1416
    @baharosman1416 Před 4 lety +1

    What is that thing on the right ?

  • @jimmylavan26
    @jimmylavan26 Před 3 lety +1

    You are an incredible teacher.

  • @emersonk4356
    @emersonk4356 Před 6 lety +12

    where was this guy a week ago when I took this test

  • @mohibsiddiq1718
    @mohibsiddiq1718 Před rokem

    one question? how will this inormation help a business major student ?

  • @smair
    @smair Před rokem

    liked commented and smashed the noti bell 🔥🔥🔥

  • @user-zb3lr3ke4f
    @user-zb3lr3ke4f Před 3 lety +2

    HOW DOES HE MAKE IT ALL SO SIMPLE

  • @thatomofolo452
    @thatomofolo452 Před 11 měsíci

    Yessssssssss Sir 💪💪💪💯💫

  • @ikyrie
    @ikyrie Před 3 měsíci

    1 min was enough to understand rather than 1 hour in class

  • @user-ph9pl1wm2u
    @user-ph9pl1wm2u Před 5 lety +3

    why is x^3 when use x^2

  • @johnymb
    @johnymb Před rokem

    I love you so much, you have no idea

  • @l1477
    @l1477 Před 6 měsíci

    saved my calculus test lol thank you

  • @thenuke4195
    @thenuke4195 Před 2 lety

    God bles you

  • @rian7704
    @rian7704 Před 7 měsíci

    what about pos infinity ?

  • @Hithere-wq6qi
    @Hithere-wq6qi Před rokem +1

    Honestly, if i ever graduate college, am flying you over and buying you lunch 😩🙏 I watched your videos and they explained everything i needed to prepare for my exams, i passed this semester with a 84/100
    A bit low, but that was my fault..i would have done EXTREMELY HORRIBLY worse if it wasnt for you

  • @user-mw9wp4im1x
    @user-mw9wp4im1x Před 2 měsíci

    I wish I could just copy-paste your know to my brain so it can easily process math questions

  • @-TEST-0
    @-TEST-0 Před 6 měsíci +2

    There is a rule made up of 3 my doctor gave us which is:
    1- If the numerator's highest power is smaller than the denominator's highest power the answer will always be zero. (just like the question in this video)
    2- If the numerator's highest power is greater than the denominator's highest power the answer is either +infinite or -infinte(there is more steps to find which infinte it is.)
    3. If the numerator's highest power is equal to the denominator's highest power the answer is the coefficient value of the highest power variable in the numerators over the coefficient value of the highest power variable in the denominator.
    (ex: 5x^2/7x^2 = 5/7)
    This looks longer than what I had in my head lol.

    • @RushilJain-si2hx
      @RushilJain-si2hx Před 4 měsíci

      Great! This helped me, thank you for posting!

    • @-TEST-0
      @-TEST-0 Před 4 měsíci +1

      @@RushilJain-si2hx Your welcome bro, and GL!

  • @bxdri
    @bxdri Před 4 měsíci

    I got my repeat exam in literally 9 minutes cus I failed my first one n this literally saving me LOOL

  • @nerdstein-2657
    @nerdstein-2657 Před 3 lety

    WOOOOOOOOW!!!

  • @On99123
    @On99123 Před 2 lety

    you are my angel

  • @kaitlynnelysse1816
    @kaitlynnelysse1816 Před 2 lety +2

    You can also just know that if the power is higher in the denominator it will go to zero!

  • @elijahmain1265
    @elijahmain1265 Před 8 měsíci

    man simplified 50 mins of class to 1 minute and 39 seconds

  • @justinekurtpuenleona6967

    Why did 5/x² becames zero? 🙂 Will you elaborate or explain it please

    • @istheresomewhere
      @istheresomewhere Před rokem +1

      LITERALLY also i couldnt figure out what he said "any number divided by a variable ___________" what did he say?? anyways im also confused on that

    • @shawnhenk4700
      @shawnhenk4700 Před rokem +1

      @@istheresomewhere "any number divided by a variable to raise a constant"

    • @istheresomewhere
      @istheresomewhere Před rokem

      @@shawnhenk4700 thank you !!

  • @azariasassaye7585
    @azariasassaye7585 Před rokem

    goat

  • @zixzizia1066
    @zixzizia1066 Před 3 lety

    Why do we divide by the highest power

    • @zixzizia1066
      @zixzizia1066 Před 3 lety +2

      And why did they become 0 that bit was quite fast

  • @ian-hm6cx
    @ian-hm6cx Před 2 lety

    i have a test in 30 minutes and i forgot how to do limits lmao

  • @theforbiddenpahadi9239
    @theforbiddenpahadi9239 Před 2 lety +1

    "any number divided by a variable to reach the console is zero" I didn't get this point

    • @vitorcosta2176
      @vitorcosta2176 Před 2 lety +9

      Ok so when x approaches +-infinity any number divided by x will result in a number so small it won't interfere in the equation that's why we can consider it as 0

  • @ddh19454
    @ddh19454 Před 5 lety

    I cant hear a thing

  • @Zupdood2
    @Zupdood2 Před 2 lety

    I was keeping up with you just fine until the last step when you mumbled something about “it goes to 0” and I needed to understand how. I’m sure it’s simple but you lost me there. I THINK what you’re doing is plugging infinity into the variables (such as x^2) and that is understood to go to 0? But I wish you hadn’t glossed over that part because now I need to go find another CZcams video that doesn’t skip over that explains it. But good video up to that last part! :)

    • @brianmclogan
      @brianmclogan  Před 2 lety +2

      Apologies but that is exactly correct. Whenever the denominator grows faster than the numerator the function will
      Approach zero as x approaches infinity

  • @Allahu_Akbar_the_one
    @Allahu_Akbar_the_one Před rokem

    God really created heaven for a reason.

  • @zamasisese5635
    @zamasisese5635 Před 3 lety

    can someone explain 1:10

  • @ShubhamKumar-cc4dh
    @ShubhamKumar-cc4dh Před 4 lety

    Muahhhhhhhh😘😘