Graphs You Must Know (Precalculus - College Algebra 13)

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  • Опубліковано 6 вер 2024

КОМЕНТАРІ • 84

  • @anim112
    @anim112 4 роки тому +75

    U could really connect to people who are slow in maths. It's wonderful how you simplify and emphasize on the key points. Deep respect for you sir.

  • @VarunVishwakarma1
    @VarunVishwakarma1 3 роки тому +31

    In INDIA we call Guru to a teacher, We touch their feet to give respect. Every time I see your video It simply comes from my heart to touch your feet. That has never happened to me throughout my life. You are simply amazing. I had a feer of Mathematics. Now it's gone. Thank you.

  • @Fazal828
    @Fazal828 4 роки тому +37

    I'm in calculus 3 and this video is still VERY relevant. I never learned (or was even taught) any of this in the TWO PreCalc classes I took and it really came back to bite me during Calc 1 and 2. Thanks, Professor!

  • @taekwondotime
    @taekwondotime 4 роки тому +21

    *Handy tip:* The curve on the graph will bend one time less than the exponent in the function.
    x^1: Doesn't bend at all. Straight line.
    x^2: Bends once.
    x^3: Bends twice.
    x^4: Bends three times.
    x^5: Bends four times.
    And so on.... :)

    • @colchi2547
      @colchi2547 2 роки тому +2

      Even functions all have parabolic shapes, thus they bend similarly

    • @sebcodestheweb9385
      @sebcodestheweb9385 2 роки тому +2

      This is incorrect

    • @sebcodestheweb9385
      @sebcodestheweb9385 2 роки тому +1

      It's like colchi says

    • @taekwondotime
      @taekwondotime 2 роки тому

      @@sebcodestheweb9385 Can you list an example?

    • @soupy5890
      @soupy5890 2 роки тому

      that's how many times it *can* bend, not how many times it always will

  • @proteopathy
    @proteopathy 4 роки тому +8

    I am now in my junior year in electrical engineering but I still watch your videos to keep me fresh. You are a gentleman and a scholar, truly. Thank you so much.

  • @Dontworryboutit247
    @Dontworryboutit247 4 роки тому +17

    Love your videos. Please do a series on linear algebra. My Soul will thank you for eternity. Love you prof!

  • @imanabu5862
    @imanabu5862 4 роки тому +8

    when I finish college I will be owing those youtube supermen and superwomen a lot! you saved me in high school and you are saving me again right now. I wish you get what want in life just like you allowed us to get what we wish by these videos

  • @narutorock998
    @narutorock998 2 роки тому +3

    Thank you king! I have hope for myself in college algebra now 😭😭😭

  • @BrainGainzOfficial
    @BrainGainzOfficial 4 роки тому +44

    Quality lookin' sharp! What kind of camera do you use?

    • @thestormcraft4012
      @thestormcraft4012 4 роки тому +3

      likely a high quality video recorder that you could buy for like 500 bucks with a tri-pod.

  • @georgesadler7830
    @georgesadler7830 2 роки тому +2

    Professor Leonard, this lecture analyzes the graphs that all students in science and engineering students should know. Students should have a deep understanding of these graphs and their impact in mathematics.

  • @Dontworryboutit247
    @Dontworryboutit247 4 роки тому +3

    DEAR PROFESSOR LEONARD, YOUR VIDEOS HAVE HELPED ME GET THROUGH HIGH SCHOOL AND COLLEGE. I’VE JUST STARTED LINEAR ALGEBRA AND I’M STRUGGLING GREATLY. THE TEXTBOOK IS ASKING ME ABOUT QUESTIONS THAT IT DIDN’T EVEN DO ANY SAMPLE QUESTIONS ON. PLEASE DO A SERIES ON..
    INTRO TO SYSTEM OF LINEAR EQUATIONS. I NEED HELP WITH FINDING SOLUTION SET OF EQUATION(S) WITH MULTI-VARIABLE EQUATIONS SUCH AS ** x - 2y + 3z = 5** etc

  • @tmann986
    @tmann986 2 роки тому +3

    I’ve been very appreciative how much work you put into this. I’m review my pre calc before this fall semester. I have calc 3 and Modern diff eqs. Kinda crazy haha thank you once again

  • @jeroincababat565
    @jeroincababat565 4 місяці тому

    I failed in Math(Calculus) in college because I took different field not related in STEM when I was in middle school. Now I'm here to finish all this course to fight back and pass that Calculus subject. Next I would take the Calculus course together with some textbook that I found in the internet.

  • @OctoberMorningRain
    @OctoberMorningRain 6 місяців тому

    Thank you for actually explaining why the graphs are shaped the way that they are. This was not explained to me while taking college algebra. Now I am better prepared for calculus.

  • @socialonly4491
    @socialonly4491 2 роки тому +1

    Using all the best, positive and wonderful from the dictionary won't be enough, I can just say that I'am and will be grateful for ever. Thank you Professor Leonard, may GOD bless you and all that you love and care about.

  • @rachelleb2007
    @rachelleb2007 3 роки тому +1

    You are a lifesaver! I feel like a genius listening to you!

  • @shaunfrost8341
    @shaunfrost8341 4 роки тому +2

    Big fan your way of teaching sir..just made sem easier!!!love from india

  • @wolfsschanze7061
    @wolfsschanze7061 4 роки тому +2

    What an amazing guy you are.

  • @marco39376
    @marco39376 3 місяці тому

    thank you so much for the incredible lessons.

  • @gleon1602
    @gleon1602 4 роки тому +13

    The thumbnail is hilarious

    • @insiya4561
      @insiya4561 4 роки тому +2

      my life in short :)

    • @Peter_1986
      @Peter_1986 4 роки тому +2

      He is like "hmmmm well um wait a moment, let's do that again".

    • @Peter_1986
      @Peter_1986 4 роки тому +1

      Actually a lot of his thumbnails are hilarious.
      Most people look funny when you take a random snapshot of them like that, lol.

  • @AtomicMushroomz
    @AtomicMushroomz 4 роки тому +2

    Brilliant video

  • @ephraimcabiliza317
    @ephraimcabiliza317 7 місяців тому

    Thank you once again Professor Leonard. You are phenomenal

  • @narendraarya7800
    @narendraarya7800 4 роки тому +1

    thanks a lot sir .
    u r helping masses in learning mathematics.

  • @MrJohnnyCrock
    @MrJohnnyCrock 3 роки тому +2

    Me being "math illiterate"
    Prof: Does that make sense to you?
    Me: uhhhh...
    It is getting better but I still have a long way to go.

  • @Gaurav-rv3eh
    @Gaurav-rv3eh 4 роки тому +7

    Damn, camera quality looking nice

  • @adityapathak2267
    @adityapathak2267 4 роки тому +1

    Hi sir please make the video on LINEAR PROGRAMMING PROBLEM...THANK YOU

  • @skillsetsociety
    @skillsetsociety Рік тому

    You're literally superman teaching us math

  • @ahmedistiaque6656
    @ahmedistiaque6656 Рік тому

    Well, I was surprised when I landed in this challenge. Is Superman teaching us math? Yes, he is.. Thanks for all math helps. Professor Leonard

  • @lexibrad7476
    @lexibrad7476 4 роки тому +1

    Love your video Professor Leonard! You have helped me a lot this semester. Next semester I will be taking Elementary Calculus. What serious would be best for me to study before going in to it?

  • @manishpingale6558
    @manishpingale6558 3 роки тому

    Love your videos! Please do a series on linear algebra.

  • @fuzyfuzfuz2
    @fuzyfuzfuz2 Рік тому

    Thank you for spelling asymptote. Ive been spelling it acentote this whole time 😅😅😅

  • @wanyangqiao9829
    @wanyangqiao9829 Рік тому

    great summarize!

  • @kingmali5897
    @kingmali5897 Рік тому

    thank you so much sir. you really helped me

  • @VieciTheengineerastronaut
    @VieciTheengineerastronaut Рік тому

    This dude is a LEGAND,

  • @nikk4s
    @nikk4s 2 роки тому

    I can't remember shapes of graphs. I can remember what defines the shapes. All but 2 of the graphs are variations of f(x)=x. f(x)=|x| is a piecewise function where y for -x is inverted. Most of the rest are described by the exponents of x. Square and cube roots are fractional exponents. The farther the exponent is from 1, the sharper the curve of the graph at its apex giving a more squared off line. The larger the exponent, the more the apex of the curve will move away from (1,1) toward the x axis making the line more vertical. The smaller the fractional exponent, the more the apex of the curve will move away from (1,1) toward the y axis making the line more horizontal. For function with x as the denominator, y is the reciprocal of x. I would love to see a video showing this and tying in transformations as a way to further tweak the line that exponents or a fraction created.

  • @taekwondotime
    @taekwondotime 4 роки тому +2

    I hope he gets back to differential equations. :D

  • @bernardbethel5401
    @bernardbethel5401 Рік тому +1

    “…can’t touch this…”😂

  • @Spartans-community
    @Spartans-community 2 роки тому +1

    Professor actually I can’t understand how you take the curve of the graph.please can you explain it to me.
    That will be a great help!

  • @AvinashKumar-gm9gq
    @AvinashKumar-gm9gq 4 роки тому +1

    Very understanding

  • @Schoolboy141
    @Schoolboy141 4 роки тому +1

    Professor, sorry for asking you here, but i can't find Calc 3 Lecture 14.5 video, is it missing or just it's just an listing mistake ?

  • @jimjim2119
    @jimjim2119 Рік тому

    I wish I could take him for my college math teacher but, I live in NYS.

  • @gamesonrack7138
    @gamesonrack7138 Рік тому

    Thank you

  • @Ddd-rr3xk
    @Ddd-rr3xk Рік тому

    Saved this vets life.

  • @madebyyuzz
    @madebyyuzz 6 місяців тому

    THANK YOU!!!!

  • @PoppySuzumi1223
    @PoppySuzumi1223 4 роки тому

    x^2 is an even function parabola graph, 1/x is an odd function hyperbola graph.... so Professor Leonard what about 1/ (x^2) ? What is it ?

  • @asdflkj2041
    @asdflkj2041 4 роки тому +1

    Fantastic

  • @alikarimi2778
    @alikarimi2778 Рік тому

    but the output of negative roots are not real numbers that's what you told in previous videos

  • @JLiptak
    @JLiptak 3 роки тому

    Question for students: Is function f(x)=b ever going to be odd function?

  • @GodGuy8
    @GodGuy8 4 роки тому

    I’m really getting into your videos to make custom indicators for forecasting in the stock market and I gotta say you look just like me man we could have been clones you’re probably about 10 years older than me I’m 25 I wish I would have taken math more seriously

  • @farahhammoud4477
    @farahhammoud4477 4 роки тому

    please upload the transformation video!!

  • @krystinasaragos1535
    @krystinasaragos1535 4 роки тому +2

    9:08

  • @churromister589
    @churromister589 4 роки тому +2

    Any updates for differential equations?

  • @ayushbhandari3230
    @ayushbhandari3230 2 роки тому

    Can someone explain me
    That how does cube root of -1 is -1 . It should be an imaginary no. So there should not be any point in graph

    • @paky3052
      @paky3052 2 роки тому

      -1 * -1 * -1 = -1

    • @PastryDonut
      @PastryDonut Рік тому

      Root is the opposite of exponent. Try raising -1 to third power: (-1)^3 = -1 * -1 * -1 = 1 * -1 = -1

  • @rushyscoper1651
    @rushyscoper1651 4 роки тому

    1/x still fit -f(x) = f(-x) yet i said its not odd because it doesn't go through the origin, so which is it? does odd function need to cross the y-axis as while to be odd?

    • @pkus
      @pkus Рік тому

      it does not need to be go through the origin instead its has to be symmetric of the origin. Anyways, in other way we can prove that f(x) = 1/ x is odd function, f(-x) = 1/(-x) = -1/x = -f(x) so its odd function

  • @olkkakanghono7408
    @olkkakanghono7408 Рік тому

    I am speechless

  • @franciseylim11
    @franciseylim11 4 роки тому +1

    Sitting down here waiting for new video....

    • @ProfessorLeonard
      @ProfessorLeonard  4 роки тому +4

      Hi Francis! I took last week off for Thanksgiving, but I'll have a video today (if it ever finishes uploading)

    • @franciseylim11
      @franciseylim11 4 роки тому

      Professor Leonard, can’t wait your new video.

  • @moviepics007
    @moviepics007 Рік тому

    i love u man

  • @feilongish
    @feilongish 2 роки тому

    Complete

  • @KishoreReddyMath
    @KishoreReddyMath 4 роки тому

    Hi,I am interested to create and publish math video lectures on your UA-cam channel

  • @austin.kallungal
    @austin.kallungal 3 роки тому

    👑

  • @VarunVishwakarma1
    @VarunVishwakarma1 4 роки тому

    One request.. at the end of the video, if you could stand aside it would be helpful to take the screenshot

  • @shahilshrestha3700
    @shahilshrestha3700 Рік тому

    sir looks like Henry Cavill 😂😂😂😂

  • @dashaagafonova519
    @dashaagafonova519 10 місяців тому

    be например you

  • @netneutrality2024
    @netneutrality2024 2 роки тому

    Graph you must know:
    Граф Монте Кристо.

  • @taekwondotime
    @taekwondotime 4 роки тому +8

    *Handy tip:* The curve on the graph will bend one time less than the exponent in the function.
    x^1: Doesn't bend at all. Straight line.
    x^2: Bends once.
    x^3: Bends twice.
    x^4: Bends three times.
    x^5: Bends four times.
    And so on.... :)

    • @tankebee4640
      @tankebee4640 4 роки тому +2

      Not true, x^n will have at most n-1 turning points. Note x^4 x^6 can look similar to a parabola