What Is a Function? | Precalculus
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- Опубліковано 28 тра 2024
- 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...
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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
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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...
Functions and Graphs: ua-cam.com/video/ZTEv8OnGaxo/v-deo.html
Transformations of Functions: ua-cam.com/video/tyQLp6x-GoU/v-deo.html
Graphing Polynomial Functions: ua-cam.com/video/rOOefdqMvtA/v-deo.html
Final Exams and Video Playlists: www.video-tutor.net/
Next Video: ua-cam.com/video/HyNie_PYgsY/v-deo.html
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.
TOCT: "A function is a relationship. A special kind of relationship....."
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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
Bruh I am just 9th
same here@@nivedhamohan6390
Iam 9th to
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Maths teachers ought to watch your videos to learn how to teach!
It's been years since I took this and completely forgot how to read functions properly. Thanks for the super clear refresher 😊
u a real one organic chemistry tutor 🙏
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4:10
no matter how much my teacher tired, i didn't understand sh8t
but Your vertical line method saved me
MR. Organic Chemistry Tutor, thank you for a smooth and beautiful definition of a Function.
Finally I found this. Saved my life. Thank you. Keep Growing.
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This is one of the simplest I’ve seen thank you . Currently studying math
Finally 😭😭😭...I eventually got easy-to-understand-explanation .Thank you soo soo Much🤩
thanks to this I was able to help my sibling on his online class
Thanks, your explanations are so clear! ❤
he's teaching is so smooth and clean that i literally cried by watching this
Great refresher.
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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
Same here
Your the best tutor your the only one I understood thank you i subbed
Thank you. This helped me so much for my pre ap test
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thanks this really helps with my studies
Very well explained. Tysm.❤
best teacher ever. I love your video's. And thank you made my grade higher so thank you
Totally Awesome Instruction on Functions! 🥰🤩👍🏽🥳
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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.
indeed, f stands for function
You R an AWESOME instructor!
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ugh this makes way more sense !
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Hi
Is the explanation of the pre -calculus material that is similar to the explanation that includes Udemy and is it not different?
is this the compelete course or we need to buy it to see the full concepts
Ahh thanks for this one
คือ ปัญหา ระหว่าง output ( เจ้าของหรือผู้บริหาร (ก็ต่อเมื่อ ) ) กับ input ( นักวิทยาศาสตร์หรือผู้สร้าง ) ครับ และ ต้องการการตอบสนอง ของ ช่องว่างระหว่าง
Can I utilize your video for just educational purposes ???
I regret learning quadratic functions before finishing my functions unit :(
Hello everybody, how to watch precalculusplaylist? do you have any content to know what to learn step by step
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
this was so helpful, i am doing calculus yet i am blank
W teacher
Who else is in 2024 and still learning with this?
Me
My cousin goes to 5th grade and he already knows what is a function
2:18 I didn’t get it how come y=2(1)+4=6 hw did it come
2 multiplied by 1 is 2 than add 4 =6
When you say, it is not a function, what do you mean by that?
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.
If it's not a function...then it's a relation
Mal-f(x)
Dys-f(x)
Bruh im in between bunch of kids here and im learning this for the sake of sat 1
Domain Expansion: Malevolent Shrine
is not the last answer 19? (pemdas)
Wonderful explanation, may God guide you to Islam
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
-9 + 18 = 9, not -27. If it was -9 - 18, then it would be equal to -27
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)
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?
2
iha 5/5
1st
Great explanation. I shall be grateful if you consider my video in this topic.
your mom