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What Is a Function? | Precalculus

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This math video tutorial explains what a function is. It is a special relation where there is exactly one output for every input. This video explains how to evaluate a function and how to determine if a graph represents a function using the vertical line test.
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_______________________________________________________________________________________________
Algebra For Beginners: • Algebra For Beginners ...
Algebra 1 Review Study Guide: • Algebra 1 Review Study...
Algebra Final Exam Review: • Algebra Final Exam Review
Pre-Calculus Final Exam Review: • Precalculus Final Exam...
______________________________________________________________________________________________
Introduction to Functions: • Functions - Vertical L...
Evaluating Functions: • Evaluating Functions -...
Function Operations: • Function Operations
Increasing and Decreasing Functions: • Increasing and Decreas...
Relative Maximum and Minimum Values: • Identifying The Relati...
Relations and Functions: • Relations and Function...
Domain and Range From a Graph: • Domain and Range of a ...
How To Find The Domain of a Function: • How To Find The Domain...
Average Rate of Change of a Function: • Average Rate of Change...
The Difference Quotient of a Function: • Difference Quotient
Evaluating Piecewise Functions: • Evaluating Piecewise F...
Graphing Piecewise Functions: • Graphing Piecewise Fun...
Composite Functions: • Composite Functions
How To Evaluate Composite Functions: • How To Evaluate Compos...
Evaluating Composite Functions - Data Table: • How To Evaluate Compos...
Composition of 3 Functions With Data Table: • Composition of Three F...
Decomposing Functions: • Decomposing Functions ...
Introduction to Inverse Functions: • Introduction to Invers...
How To Find The Inverse of a Function: • How To Find The Invers...
Verifying Inverse Functions: • Verifying Inverse Func...
Horizontal Line Test - One to One Functions: • Horizontal Line Test a...
Vertical Line Test: • Vertical Line Test
Graphing Inverse Functions: • Graphing Inverse Funct...
Composite Functions and Inverse Functions: • Composite Functions an...
Even and Odd Functions: • Even, Odd, or Neither ...
Transformations of Functions: • Transformations of Fun...
Linear Functions: • Linear Functions
The Weird Graph of Y = X^X: • The Weird Graph of y =...
Functions and Graphs - Practice Problems: • Functions and Graphs |...
Functions - Test Review: • Functions
______________________________________________________________________________________________
Logarithms Practice Problems: • Logarithms - Practice ...
Writing Equations of Ellipses: • Writing Equations of E...
Hyperbolas - Conic Sections: • Hyperbolas - Conic Sec...
Arithmetic Sequences: • Arithmetic Sequences a...
Geometric Sequences: • Geometric Series and G...
Probability - Basic Intro: • Introduction to Probab...
Intro to Statistics: • Introduction to Statis...

Опубликовано:

13 авг 2024

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Комментарии : 111

@TheOrganicChemistryTutor Год назад

Functions and Graphs: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ZTEv8OnGaxo.html Transformations of Functions: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-tyQLp6x-GoU.html Graphing Polynomial Functions: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rOOefdqMvtA.html Final Exams and Video Playlists: www.video-tutor.net/ Next Video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HyNie_PYgsY.html

@dgangs18 Год назад

I will by 40 year old this year,, and all these 40 years I was in guilt that I lacked the Basics. This has nothing to do with me now, but I still watch and practice your videos and try to be better thinking that I am back to school. Thank you so much. You are doing a great work here.

@technicallyyogi5123 3 года назад

I literally cried seriously becoz his teaching was so clear and I know the basic for12 th grade so i am still doing my 11th amd 12th combine to study becoz i literally lost 11th becoz of COVid so I am learning. I am from india

@nivedhamohan6390 Год назад

Bruh I am just 9th

@Vector_theory Год назад

same here@@nivedhamohan6390

@Shincikin 11 месяцев назад

Iam 9th to

@subhashinijkp 11 месяцев назад

chill bro 😎

@cat-des650 4 месяца назад

11th new

@misguidedmiscreants547 3 года назад

TOCT: "A function is a relationship. A special kind of relationship....." Me: 😍💕awww how sweet💘💕

@mainlyanassassin4950 3 года назад

no.

@straight1080 2 года назад

@@mainlyanassassin4950 no.

@Menzi_95 2 года назад

no.

@Fishylocker 4 месяца назад

nom nom

@ANedits-rc1je 21 день назад

wtf

@miaash3870 3 года назад

Maths teachers ought to watch your videos to learn how to teach!

@101falcon 2 года назад

It's been years since I took this and completely forgot how to read functions properly. Thanks for the super clear refresher 😊

@PeachyKeenMaureen 3 года назад

Thanks for talking in simple English and making my life much easier. Please keep posting because you are amazing!!

@thek4lqueen 2 года назад

I've watched allot of videos for hours and they were all confusing this is the only one that helped! THANK YOU🙏🏽🙂!

@WinkyDinKdink 4 года назад

I love this channel! Keep doing what you're doing because you're helping so many. keep it up :D

@tajuoni8854 4 года назад

Thank you Mr JG.You're indeed a life saver.Continue with your good work.May God reward you sir

@Snow-ej5fm Год назад

u a real one organic chemistry tutor 🙏

@Fam98KK 9 месяцев назад

4:10 no matter how much my teacher tired, i didn't understand sh8t but Your vertical line method saved me

@blessinghairworld 2 года назад

I don't even bother checking other videos any more 🥰 I'm literally in love with all your teachings. God bless you sir 🙏🙇

@unknownuser6757 4 месяца назад

Not in school. I just like math

@technocrafts7443 2 месяца назад

U r crazy 🤪

@freeman10000 Месяц назад

I like maths too

@asterixboy3011 3 года назад

Finally I found this. Saved my life. Thank you. Keep Growing.

@georgesadler7830 2 года назад

MR. Organic Chemistry Tutor, thank you for a smooth and beautiful definition of a Function.

@deborahmuoki8464 2 года назад

Finally 😭😭😭...I eventually got easy-to-understand-explanation .Thank you soo soo Much🤩

@sanopann1896 9 месяцев назад

the only way to help this guy back is to watch the ads that popping out on his video

@jaydevsingh4811 4 года назад

Love from India You will rock here Just wait and watch

@jarediannudalo6074 3 года назад

thanks to this I was able to help my sibling on his online class

@jiadotsomething Год назад

I’m in 9th grade and we haven’t done this in school yet . So I literally don’t have a teacher to teach me this but because of how amazing this video is I instantly grabbed the concept

@teamf4xhades379 8 месяцев назад

Same here

@yolandasession8158 2 года назад

This is one of the simplest I’ve seen thank you . Currently studying math

@a3avd_ Год назад

he's teaching is so smooth and clean that i literally cried by watching this

@Sultan_A 3 месяца назад

Very Good, The Organic Chemistry Tutor, Keep It Up 🎉🎉🎉

@Lifeless_Asian 2 месяца назад

This chemistry tutor teaches math better than my math teacher

@mosesmuturi1694 2 года назад

Organic chemistry,,,you are the best tutor 🥰🥰

@magnetictrios8449 3 года назад

Your the best tutor your the only one I understood thank you i subbed

@Salehbinnasser-ob8bk Год назад

best teacher ever. I love your video's. And thank you made my grade higher so thank you

@SharpCookie 4 года назад

Great explanation! One of my students asked me why do we usually write "f(x)," and I'm guessing "f" stands for function...? I know g(x) is the other common notation.

@GodbornNoven 2 года назад

indeed, f stands for function

@johnnyjohn9134 4 года назад

You are the Best teacher!!

@Ellie-em1fi 3 месяца назад

Great refresher.

@ettabrown1332 3 года назад

You R an AWESOME instructor! This is the reason for purchasing a smart TV, so that one can mirror your videos from a smartphone to the big screen while relaxing @ home listening to Ariana Grande shilling in Victoria’s Secrets sweatpants (writing on my tablet)! What better way to spend a day👍

@alongtheuniverse8725 2 года назад

Really adorable

@nengimotejaphet2565 5 месяцев назад

Who else is in 2024 and still learning with this?

@oluwakemioni7397 4 месяца назад

@Liarr-gf3xj 6 месяцев назад

thanks this really helps with my studies

@sipnaysanay4189 2 года назад

simple and straight...

@Pegisus2501 Год назад

Totally Awesome Instruction on Functions! 🥰🤩👍🏽🥳

@siena3629 3 года назад

this was so helpful, thank you!

@ayowhatthee4484 2 года назад

Thank you. This helped me so much for my pre ap test

@txuezea4072 2 года назад

Thanks for this awesome video 💖💖

@TheFannysu 9 месяцев назад

Thanks, your explanations are so clear! ❤

@klausvery Год назад

Brother, you are really awesome teacher!

@osamudazai2958 3 года назад

Your way easier to understand! ThankYou!

@sammygilbert2615 2 года назад

I love the teaching.....I am Sam from Kenya Africa

@samh-smith2931 2 дня назад

Youre a star ⭐✨

@notyouralize8052 9 месяцев назад

Very well explained. Tysm.❤

@darkphantom_01 11 месяцев назад

This guy never disappoint ❤

@doloresolivarez536 Год назад

ugh this makes way more sense !

@annstegall2818 Год назад

Thank you so much. Im taking a class right now that is already paid for so i cant leave or afford to take another class and I need these credits for what I want to do. You have been helping me so much to pass this class. Thank you.

@omar-jabermohamoud1073 4 года назад

what a teacher 😘😘😘👍

@himanshubarnwal934 Год назад

After watching this, I realised that I am worrying for nothing.... Too smooth

@imakechannel 2 года назад

I really appreciate these videos...studying at polytec and your videos are really helpful. Keep it up

@-_-4624 Год назад

we need a function tier list

@adnankamal3697 3 года назад

best teacher

@dawseym6412 2 года назад

คือ ปัญหา ระหว่าง output ( เจ้าของหรือผู้บริหาร (ก็ต่อเมื่อ ) ) กับ input ( นักวิทยาศาสตร์หรือผู้สร้าง ) ครับ และ ต้องการการตอบสนอง ของ ช่องว่างระหว่าง

@bavinatta7536 2 года назад

Thank youuu so much , love ya 🙏

@becoolandbesmart5416 4 года назад

I like your lessons

@shreemoyeechakraborty382 Год назад

thank you so much

@Codingpyandgaming 2 года назад

Cool video!! i love thissssss!!!!!!!!!

@dodong2.99mllegend8 2 года назад

Very helpful

@mashalmokarar4817 Год назад

is this the compelete course or we need to buy it to see the full concepts

@ntbyng 2 года назад

I regret learning quadratic functions before finishing my functions unit :(

@mehdiasadat1839 2 года назад

it was just amazing

@rystinaset6526 Год назад

Hello everybody, how to watch precalculusplaylist? do you have any content to know what to learn step by step

@mrsid47 3 года назад

Thank you. 😁

@user-nw8up4sq5f 11 месяцев назад

Hi Is the explanation of the ‏pre -calculus material that is similar to the explanation that includes Udemy and is it not different?

@Uguyviy 4 года назад

Love you bro

@riichan2895 Год назад

im just kinda confused in the part where, do u need to add first or subtract? ik theres a PEMDAS rule but why is here different? anyone help

@turupofficial4125 4 года назад

I like him this channel 👏👏👏

@antonio_v17 2 года назад

W teacher

@ummahyehmmm7403 3 года назад

Ahh thanks for this one

@nepthalitejadajr.2503 2 года назад

Can I utilize your video for just educational purposes ???

@siyabongampongwana990 Год назад

Mal-f(x) Dys-f(x)

@leulhaile3794 2 года назад

2:18 I didn’t get it how come y=2(1)+4=6 hw did it come

@balls2442 2 года назад

2 multiplied by 1 is 2 than add 4 =6

@terrencemadzamba1956 2 года назад

this was so helpful, i am doing calculus yet i am blank

@theengineeringstudent2678 4 года назад

When you say, it is not a function, what do you mean by that?

@mangomanlassi7779 3 года назад

essentially a function is determined if a straight line cuts through a graph ONLY once. So if it cuts 2 or more times, it isnt a function. What you should do is try to draw a graph, then draw a straight line through it and see if it intersects with the graph once. If yes, it is a function.

@txuezea4072 2 года назад

If it's not a function...then it's a relation

@asserayman9461 8 месяцев назад

Wonderful explanation, may God guide you to Islam

@theifelltower 2 года назад

My cousin goes to 5th grade and he already knows what is a function

@Swiss-Rome 2 года назад

Domain Expansion: Malevolent Shrine

@PixelPawz 2 года назад

10:48 Based on PEMDAS, shouldn't f(2,3) be -19? f(2,3) = 2(2²) - 3² + 3(2)(3) f(2,3) = 8 - 9 + 18 f(2,3) = 8 - 27 f(2,3) = -19

@t3zmazerunner128 2 года назад

-9 + 18 = 9, not -27. If it was -9 - 18, then it would be equal to -27

@andromedanyxmortem9386 Год назад

You subtract first before adding since you are solving from left to right, not right to left. Just because Addition is ahead of Subtraction in PEMDAS doesn't mean it should always go first. It is just said that after Multiplication/Division(this also applies to these two operations) you then do Addition or Subtraction, depending which comes first. For example: 4 × 5 + 3 - 1 = 22 Addition comes first because it came first before subtraction. In the case of 4 × 5 - 1 + 3, the answer will still be 22 since you first subtracted one then added three. (Idk if this is actually correct because I am currently operating on what remains of my brain cells due to a lot of problems. Like srsly, research problem, algebra projects, statistics quiz, that damned EsP(I am still on the side of replacing this with either ROTC or Philosophy) interview(my teacher is just a boomer who just wants to make our life harder) plus not to mention chemistry. I already have grey hairs and I'm just 13 wth)

@andromedanyxmortem9386 Год назад

Not to mention my algebra teacher talks fast and assumes we know this stuff already despite having two years of modular learning. How does she expect us to remember this?