Yeah, all my teacher does is show us videos so she doesn't have to teach. Then she complains "I stayed at school till eight looking for videos for you"
@Lucas I am originally from Russia ,since 2003 live in Ireland. In Russian language we have saying Книга лучше чем друг (kneega loochshe chem droog) means:Book is better than friend
Provided that you stick to the equation, you can pick any x-value and it will be on the line or curve with a correct y-value. We are plugging in x-values because we are probing to see where the line is. If there are no limits placed on the Domain (x) or Range (y), the line or curve goes on forever. Which means, you can pick any number greater than negative infinity or less than positive infinity and you will get a correct coordinate. For real life purposes we impose limits on Domains and Ranges, because we operate within the parameters of natural law.
I should correct myself: the domain and range are the limits placed on x and y values, respectively. Limits cannot be placed on the domain or range, because they are the limits. My bad.
I spent hours trying to understand how f(x) was supposed to be used with the useless McGraw-Hill ConnectMath we were assigned to use. I came here and understood it in under 5 minutes. Thanks!
Thank you so much for this lesson ~ I didn't know that we can just choose our own points to graph a function. This has confused me for years, and now I think I finally got it. Thank you thank you thank you!
This platform (TH-cam) has really changed the world. I wish I could have had this as a student in middle and high school, maybe I could have been excited by learning instead of getting into trouble with friends.
Khan you the man, I'm studying for my TSI and you have a video for every little thing on my study guide.. at first I'll be confused af but you always wrap it up in the end. I hope you're living the best life ever knowing you're helping so many people.
I was looking at comments and I was like no way this guy is this good but I watched it and I now understand functions. It’s a good thing we’ve still got champs like these on TH-cam (especially during COVID)
THANK YOU!!!!I'm in the 8th grade and this was very helpfull/homework with some of my test **cough cough even though I may or may not understand a couple thing cough cough** I wish my math teacher taught like you she just gives you a worksheet and expects you to know how to do it (UPDATE: Im a senior now about to graduate highschool soooooo thanks I guess????)
+Elizabeth Parker Same...and when I THINK that I did okay, my good friend F shows up...again...I haven't aced a single test this year...not even a C...I feel dumb
I fumbled through functions on to exponential and their inversi(? Inverses?) or logarithms and given a a function and told to graph it I had no idea what to do. If I'd seen this video 3 weeks ago I'd have struggled so much less
On your website you should make categories for different grades because I use Khan academy for all of my tests it would be much easier to find what I'm looking for.
So no matter the question that is if they don't give u the range of values that can be substituted in the place of x to get y values its basically based on trial and error.
I don't think I am alone in watching videos of plotting a functional values on a graph in spite of being an engg! I can stop feeling embarrassed, finally!
thank you! quick question though (if anyone can help me out). how do I know what numbers to use for x? like how do I know what input to put to satisfy the equation/graph? hope you guys can help me with this lol
I’m in 8th grade and this helped me so much. I got home and looked at my math hw and was like wth is this crap edit: also who came up with f(x) it is basically y in different form it’s just a waist of my time and everyone else’s -.-
George W. Bush draw the exponential graph of 3^x after plotting the graph . plot points 1/3 unit up ( 1/3 unit up along y axis) reason is let f(x)= 1/3+3^x let say g(x)=3^x f(x)=1/3 + g(x) so you can observe that for any x ; y will differ by 1/3 .
What if you dont choose 1 and 2 for X, can you choose any other number u want? to me it seems like youre just supposed to guess what X is. I dont understand that. Where do they get the X from, where do you get the Domains from are they always random
why do some teachers get paid for doing shit when there are people like this guy on youtube who could make great teachers
MrTyler8877 ikr
Yeah, all my teacher does is show us videos so she doesn't have to teach. Then she complains "I stayed at school till eight looking for videos for you"
MrTyler8877 Paid? Ha!
we are living in a paralel universe, that's why.. Do not expect to be like everyone think it has to be..
paid? you think they get paid anything enough for the work they've got to do?!
At least Indian teachers are quite good, but still not paid enough
I really don't know how people from the past made it without TH-cam. Thank god!!
***** Have you seen the teachers of today?
+SVTcoolguy well, what about people with short attention span?
Ikr lol
@Lucas I am originally from Russia ,since 2003 live in Ireland. In Russian language we have saying Книга лучше чем друг (kneega loochshe chem droog) means:Book is better than friend
@Lucas )))) Do you speak Russian? )
5 years after graduating from high school plus 2 semesters of college, I finally understand functions, which is quite embarassing. Wow
+Wesley Richardson hmu
+xeztan amen
The thing with me is, i never understood that you just choose any number you want for x. That always confuses me and makes 0 sense to me still.
Provided that you stick to the equation, you can pick any x-value and it will be on the line or curve with a correct y-value. We are plugging in x-values because we are probing to see where the line is.
If there are no limits placed on the Domain (x) or Range (y), the line or curve goes on forever. Which means, you can pick any number greater than negative infinity or less than positive infinity and you will get a correct coordinate.
For real life purposes we impose limits on Domains and Ranges, because we operate within the parameters of natural law.
I should correct myself: the domain and range are the limits placed on x and y values, respectively. Limits cannot be placed on the domain or range, because they are the limits. My bad.
The fact that I’m watching this video to learn how to do it instead of my teacher shows that he should be getting paid not my teacher lol
This guy does get paid bro
@@SWEATDelta khan academy is a nonprofit
TOM HOLLAND HELLO PETER
yeah
Y’all this is literally me I can’t confess to my teacher that I haven’t understood a a single thing since the beginning of the year so here I am
I spent hours trying to understand how f(x) was supposed to be used with the useless McGraw-Hill ConnectMath we were assigned to use. I came here and understood it in under 5 minutes. Thanks!
Thank you so much for this lesson ~ I didn't know that we can just choose our own points to graph a function. This has confused me for years, and now I think I finally got it. Thank you thank you thank you!
same here! i had no idea as to how they got the x value and was unaware that you could choose your own.
This platform (TH-cam) has really changed the world.
I wish I could have had this as a student in middle and high school, maybe I could have been excited by learning instead of getting into trouble with friends.
Khan you the man, I'm studying for my TSI and you have a video for every little thing on my study guide.. at first I'll be confused af but you always wrap it up in the end. I hope you're living the best life ever knowing you're helping so many people.
or in better words why do we have school when we have this guy and youtube
You are awesome. I don't understand my teachers method of teaching anything, keep up with the videos!
janelle maria yes
Have you asked your teacher for support?
Months of classes and I have no idea what's going on
Two minutes in and I pretty much get it
These videos are sooo amazing
The best professor ever. I never donate money. But I did for this guy. Well worth it.
Like it's been about 5 years I watch his videos to cram before a exam 😂😂 thanks man ...keep doing the work
Khan, I love your way of teaching .There is not enough words to thank you
Thank You SOO MUCH! It is currently 11 PM and I've been searching for an hour for someone to explain this to me. I have a test tommorow thanks again!
THANK YOU SO MUCH. Learn more in your five minute vids than all year in math class. Total life saver!!
I was looking at comments and I was like no way this guy is this good but I watched it and I now understand functions. It’s a good thing we’ve still got champs like these on TH-cam (especially during COVID)
this guy is a savior
Dude my algebra class is haywire i can barely learn anything and this helped me learn so much thank you
When you got to the end and drew a line through all the points I was just like "Oooohhhhh!I get it now!"
Omfg I swear you are so much better than those stupid live zoom classes I have everyday. Tysm 🥺❤️
I remember learning this stuff in grade 3. Singapore is just built different... Thank you for the recap my friend
THANK YOU!!!!I'm in the 8th grade and this was very helpfull/homework with some of my test **cough cough even though I may or may not understand a couple thing cough cough** I wish my math teacher taught like you she just gives you a worksheet and expects you to know how to do it (UPDATE: Im a senior now about to graduate highschool soooooo thanks I guess????)
+suntanrii Senpai
Same.
Wow wait until you get into high school it just gets worse
Elizabeth Parker lol i figured that tbh #fml
Haha...yeah...my algebra teacher assumes everyone knows what they're doing so she gives us tests with things she's never even taught before on it
+Elizabeth Parker Same...and when I THINK that I did okay, my good friend F shows up...again...I haven't aced a single test this year...not even a C...I feel dumb
i’m confused how did u get x=-2😭 or did he just put in a random # like i’m so confused how to graph them🤦🏻♀️
thanx man u really help me out on my test i passed with a 100 a perfect score for me thanx alot
Just to make it clear, you basically try it with any x values to plot it on the graph, so you can pick any x ?
You are awesome, teachers don't know how to teach but you do!
my teacher is horrible at doing online and barely gives any instructions so this helped a lot thanksssssssss
Thank you so much, my teacher is really bad at teaching these.
A lot of people think their teachers are bad.
I'm ready for tmrw functions quiz. Bro this guy made it seem so simple.
Thank you for this video it was extremely helpful and now I'm going to be able to keep up in class
Thank you so much! This was better to understand than what my instructor showed me
who is watching 2024
I fumbled through functions on to exponential and their inversi(? Inverses?) or logarithms and given a a function and told to graph it I had no idea what to do. If I'd seen this video 3 weeks ago I'd have struggled so much less
Thanks! Photomath was teaching me AN IMPOSSIBLE WAY
Thanks for this man. This helped me.
I still don't get it btw
me too
Same here
Just plug in a random number for x and graph the result and do this with a few numbers. Then just connect the dots! :)
Zac RBLX oh so the numbers can be random? I was like WHAT DO I PUT FOR X?
@@zacrblx7978 ur getting a like
this helps alot cause right now we have subs
I wish my Math teacher as efficient as you are!!!
i couldnt learn this all throughout highschool & just learned it in 5 mins on here. gg
So its up to you what your first x is going to be?
Thankyou so much, you made my task more easy
oh my god thank you sooo much i've been overthinking it all this time!
This helps me with algebra 1...
i use your app it is epic i started after watching the video. it is great
Thank You Bro! You saved my project....Like added
You're a beautiful account and I appreciate you
Great video helped alot! Appreciate, by the way all you fellow humans, i happen to be in 1st grade so surely you can comprehend this topic!
Such a clear explanation. Thank you!
On your website you should make categories for different grades because I use Khan academy for all of my tests it would be much easier to find what I'm looking for.
So no matter the question that is if they don't give u the range of values that can be substituted in the place of x to get y values its basically based on trial and error.
He trueeeelllly deserves a nobel prize :)
Good tutorial, thanks man
Someone give this guy a medal XD
I love that cut-off sniff at the end
thank u i got my regents tmr
thank you for this :) I have my algebra 2 test today
my teacher didn’t teach me this will and i have a unit 1 test next class so like wish me luck 😟
thank u very much this is a great help especially to those who are not good in math * *coughs* * me
Thanks, great videos to watch before a big test.
You, are a legend.
Seriously this guy teaches better than my teacher😑😁
your videos are helpful as fuck
Yeah, watch your fucking language.
I think he was joking mate.
they were joking broh
So f(x) is just another way to call "y"?
7th grade prodigy right here boyssss
Thanks for the refresher!
This helped so much...
I’m watching this with my math test TODAY
haha U re-did the whole video because of that one little mistake? That's dedication!
That was a good video..good video. Thanks for all the, all the help with this. Alllll the help with this. Thanks
I don't think I am alone in watching videos of plotting a functional values on a graph in spite of being an engg! I can stop feeling embarrassed, finally!
Thanks it really helped me
Wow..Great...post some more videos .Thank sir .
You'll write a function, graph it,t-table and describe a function in words....
You help me about that assignment! Subscribe.
Thank God for you
How do you know when to stop? Why not go to 3 or 4 ect. How do you know you are done?
Thanks for the video. Now I understand.
Thank you for helping me
Im just a grade 6 student and im already understanding this.
Sal coming in clutch saving me from a F in mid-terms
Thanks dude you should be nominated for saving exams lol
I UNDERSTOOD OMG TYSM
thank you! quick question though (if anyone can help me out). how do I know what numbers to use for x? like how do I know what input to put to satisfy the equation/graph? hope you guys can help me with this lol
So mostlikey the exam would say the x values, or you would have to do 1-5 in basic math
This helped me soon much
thanks for the explanation!
KHAAAAAAAN!!!!!!
Is X always going to be starting with 2 going to -2?
no, x can be any numbers from the domain. he just sampled the points 2 to -2.
I’m in 8th grade and this helped me so much. I got home and looked at my math hw and was like wth is this crap edit: also who came up with f(x) it is basically y in different form it’s just a waist of my time and everyone else’s -.-
LOLLL THATS EXACTLY WHAT IM UP TO.
thanks this helped a lot
You're awesome! Thank you lol :)
What if the function has a variable such as x for an exponent? Example: f(x) = 1/3 x 3^x
George W. Bush draw the exponential graph of 3^x after plotting the graph . plot points 1/3 unit up ( 1/3 unit up along y axis) reason is let
f(x)= 1/3+3^x
let say g(x)=3^x
f(x)=1/3 + g(x)
so you can observe that for any x ; y will differ by 1/3 .
for plotting 1/3×3^x
y=3^(x-1)
same graph as 3^x but will intersect y axis at 1 when x=1
Man you are the best!!!!
What if they did not give the value of X, what should we do then
replace the f(x) with the y axis and solve
Where did you get the -2? I'm confused
2024 u saved me thank u
wish my math teacher could explain as good as you
What if you dont choose 1 and 2 for X, can you choose any other number u want? to me it seems like youre just supposed to guess what X is. I dont understand that. Where do they get the X from, where do you get the Domains from are they always random
Lavon Scarlett i know right!!
you choose the x values. usually start from a lower number to a higher number to see where the graph is going
I really understand know , THANKS !
But what if the x and y domain have more numbers do you do that out for every number there
thank you so much for the video!