What Is a Function? | Precalculus
758K views · Feb 11, 2020 · Education
Comments · 290
@TheOrganicChemistryTutor · 3 years ago (edited) · pinned
Functions - Free Formula Sheet: <a href="https://www.video-tutor.net/precalculus-formula-sheets.html">https://www.video-tutor.net/precalculus-formula-sheets.html</a><br>Functions and Graphs: <a href="https://www.youtube.com/watch?v=ZTEv8OnGaxo">https://www.youtube.com/watch?v=ZTEv8OnGaxo </a><br>Final Exams and Video Playlists: <a href="https://www.video-tutor.net/">https://www.video-tutor.net/</a><br>Final Exam and Test Prep Videos: <a href="https://bit.ly/41WNmI9">https://bit.ly/41WNmI9</a><br>Next Video: <a href="https://www.youtube.com/watch?v=HyNie_PYgsY&list=PL0o_zxa4K1BU5sTWZ2YxFhpXwsnMfMke7">https://www.youtube.com/watch?v=HyNie_PYgsY&list=PL0o_zxa4K1BU5sTWZ2YxFhpXwsnMfMke7&index=4</a>
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@sanopann1896 · 2 years ago
the only way to help this guy back is to watch the ads that popping out on his video
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@dgangs18 · 3 years ago
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.
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@misguidedmiscreants547 · 5 years ago
TOCT: "A function is a relationship. A special kind of relationship....."<br><br>Me: 😍💕awww how sweet💘💕
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@lekhonisarkar2897 · 1 year ago
Scared of math too much. Now in college I have mandatory math. So I am learning from scratch. It's hard. This is my first video.
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@miaash3870 · 5 years ago
Maths teachers ought to watch your videos to learn how to teach!
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@alderane · 7 months ago (edited)
Notes<br>1. Functions: Any unique input will have a unique output. <br> By analogy, a single path leads to a single destination (A--->C). A different path can also lead you to the same destination(B--->C). But a single path won't lead you to multiple destinations (A---> C+D).<br>2. Relationship: single input ----> multiple output.<br>3. Identifying functions by graphical representation: Vertical line test<br>4. Why radical function is treated like one? [ y = sqrt(x) ]<br> bcoz there's a domain restriction for this function(even functions). sqrt(4)=2, not +/-2.
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@101falcon · 4 years ago
It's been years since I took this and completely forgot how to read functions properly. Thanks for the super clear refresher 😊
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@Snow-ej5fm · 3 years ago
u a real one organic chemistry tutor 🙏
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@Idkhfkrfs · 1 year ago
The way he said, "that is not okay!" was so dramatic this dudes entire tone changed lol at <a href="https://www.youtube.com/watch?v=7JZ0IfCQ488&t=183">3:03</a>.
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@krisjmotivates · 4 years ago
I've watched allot of videos for hours and they were all confusing this is the only one that helped! THANK YOU🙏🏽🙂!
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@technicallyyogi5123 · 5 years ago
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
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