You are my new best friend. My pre-calc teacher is a sad excuse of a teacher (he's only at our school to coach) and nobody is learning anything. I am totally giving your channel out to...like everyone in my class. This makes so much more sense now! *hallelujah!*
I have a math quiz tomorrow and I've been sooo lost in class so I had to come to youtube to learn and its makes sense now. I learned this in 5 minutes as opposed to how complex my teacher explained it in 2 weeks. Thank you! You earned a subscriber
Finally, after the continuous struggle in my Pre-Calculus class (My foundation of Algrebra is horrible) I finally got this, in 5 mother duckling minutes! Someone just need to break it down for me, not just teach. Thank you patrickJMT.
Thanks so much patrick. This was super helpful. I was having trouble with the range and found yuor video and now I understand it so much better. Thanks once more.
Great explanation, thanks! I've been trying to understand interval notation for weeks, and now domain, range, and notation is much easier. Awesome job, dude.
thank u so much, everything is so making so much more sense now!! Domain and range was only thing i struggled on in pre-cal, nd my teacher suggested i should review this chapter before i go into grade 11 pre-cal, nd now two days before school i am watching ur video nd everything makes so much sense!!
@TheCapnPorridge eh, that's math. more generally, it is like learning anything new. it takes time. some people expect to understand it instantly and just get pissed and give up when that does not happen. (not that you are behaving this way). ya just gotta hang in there and stick with it.
Thank you so much! Explained so thoroughly what domain and range is! I have a math test tomorrow and i was panicking, now im soothed. Once again, thank you so much!
Thank God this helps so much.I understand it now. My teacher makes things much more complicated, talking about a bunch of scenarios and long math terms and stuff but this is a lifesaver for me and my test soon
@NikeLeBronJames brackets mean the number is included in the domain, a parenthese means the number is not included so that number is not part of the domain/range
I find this guys Math videos entertaining. Wish he was my teacher, cause my math teacher, is confusing, takes too fast, and works problems fast, and sometimes not finishing em. I'm half way asleep and hardly understand a thing he's saying, I need to get some sleep, and then my little brain will work at its full strength again
You use [ ] (brackets) when the point is filled, which indicates that that point is included. While you use ( ) (parentheses) when the point is open, like the second graph, which indicates that that point isn't going to be included in your answer. Hope this helps :)
do you mean with the brackets [ or parentheses ( ? if there is a closed, filled in circle you include the value. if there is an open circle, you do NOT include that value
A very clear video! I just wish you mentioned the union symbol U between the intervals rather than using comma. But I'll still use it for my students to view! Thank you!
It is amazing that I can look in my math book and listen to the lecture and not get this stuff in hours whereas I can find a video and understand it in minutes.
I love it how you explain this all, it makes more sense to me :D I love how you use sharpie, so sure of your work you don't need a pencil. Hopefully with this ill be able to pass my advanced placement Math exam for college :) thanks for the knowledge!!
THANNNK YOU. I failed my test because I didn't know to use the "infinity" sign and when I got it back I was confused by my teachers infinity markings but now I understand:)
@patrickJMT instead of writing the domain and range using the inifinity symbol, use y belongs to the set of real numbers or x belongs to the set of real numbers than state if they are greater, equal, or less than a numer
how you wrote the domain and range graph at 2:55, would that be the same as D: x>o and R: x>(or)= 5 ? my teacher doesn't use brackets or parenthesis in class...
@bilibob32352 yes, nothing like a career of being underpaid, and under appreciated! nothing more fun than having a class full of students texting each other on their phones while you stand there and waste your time.
@itsonlyyou04 For example, reading {y|y>0} would be y is the set of all real numbers such that ( | ) y is greater than 0. It's just saying the line will go on forever past 0, and must be greater than 0. Hope this helps.
you just summed up 2 weeks of practicing domain and range in about 6 minutes. thank you so much
You are my new best friend. My pre-calc teacher is a sad excuse of a teacher (he's only at our school to coach) and nobody is learning anything. I am totally giving your channel out to...like everyone in my class. This makes so much more sense now! *hallelujah!*
Why can't teachers just be this simple...
Because teachers want you to feel that we are stupid so that we actually listen to her lol
They know how to do the questions but don’t know how to teach
I have a math quiz tomorrow and I've been sooo lost in class so I had to come to youtube to learn and its makes sense now. I learned this in 5 minutes as opposed to how complex my teacher explained it in 2 weeks. Thank you! You earned a subscriber
did u pass? (3 years later....)
Did you pass 4 years later
@@Cookie-yp5qg yess haha I did
@@giovanniwebb6304 I did pass 🤣 I graduate with my bachelors this December so no more math!
Not touching not touching not touching. Forever and ever and ever
You and women, huh?
lmao😂😂😂
Jacob Varnon you got it 😂😂😂
Annoying I know
This helped so much, my teacher makes things so complicated.. This was a great way to explain it, thank u
+stephanie binkley glad it helped!
Finally, after the continuous struggle in my Pre-Calculus class (My foundation of Algrebra is horrible) I finally got this, in 5 mother duckling minutes! Someone just need to break it down for me, not just teach. Thank you patrickJMT.
Best video out there about domain and range in piecewise functions, and it was posted 5 years ago! Thank you!!
Kate Reilly sub to my channel plx it's megan jamieson I'm a boy
Kate Reilly please
Patrick is theee best in my opinion! I am so grateful for all of the effort you out into these videos! So well organized and simple to understand.
@JJonesSilver yes, that is incorrect notation.
Thanks so much patrick. This was super helpful. I was having trouble with the range and found yuor video and now I understand it so much better. Thanks once more.
Your videos always help me.
perfect!
patrickJMT pefect
66777jason penis
At 5:00 in for the domain [8,infinty) is it not negative infinity since its going down? Help. :(
domain means it is for x value not for the y value
You're going left to right for domain.
x is ever increasing.
this is a 6 minute video and i learned more from you than i ever did in a classroom THANKYOU
Great explanation, thanks! I've been trying to understand interval notation for weeks, and now domain, range, and notation is much easier. Awesome job, dude.
You literally taught me more (and I actually understood what you were explaining) in 5 minutes than my teacher did in 55 minutes.
@oratnek0227 a curve, yes. but that is not a function, so you will not encounter much stuff like that.
Just a little note on notation, the intervals are linked by the union sign U, not comma... i.e. (-∞,-6) U [8,∞)
thanks, i was wondering about that because i had something with that union sign on my homework
You're so going to help me pass my midterm for pre-calc! Thank you! :)
I never understood how to find domain and range untill I watched your pen-moving-along-the-axis thing!! Thank you
thank u so much, everything is so making so much more sense now!! Domain and range was only thing i struggled on in pre-cal, nd my teacher suggested i should review this chapter before i go into grade 11 pre-cal, nd now two days before school i am watching ur video nd everything makes so much sense!!
@TheCapnPorridge eh, that's math. more generally, it is like learning anything new. it takes time. some people expect to understand it instantly and just get pissed and give up when that does not happen. (not that you are behaving this way). ya just gotta hang in there and stick with it.
the pen trick helped so much. you are a serious life saver thank you
Thank you my teacher just wrote and said what the domain was without explaining it. She didn't even explain what the brackets meant.
@23Labron431 good luck : ) spread the word to your friends about the videos!
@renato989 i can not type in the domain name correctly as youtube filters them : )
Thank you so much! Explained so thoroughly what domain and range is! I have a math test tomorrow and i was panicking, now im soothed. Once again, thank you so much!
I had a hard time learning this today in class but after watching this video it all makes sense!! Thank you sir :)
I finally understand domain and range, and I'm a freshman in college haha. I'm so glad I watched this video, thank you!!!
wow !!! after all this time finally got it , so simple, great way of explaning it, a way that students could learn!
All your videos are so helpful. You're making me enjoy math again
Thank God this helps so much.I understand it now. My teacher makes things much more complicated, talking about a bunch of scenarios and long math terms and stuff but this is a lifesaver for me and my test soon
glad i could help you out :)
@NikeLeBronJames brackets mean the number is included in the domain, a parenthese means the number is not included so that number is not part of the domain/range
Patrick, you are a life saver! Thank you so much! Your pencil trick really helped me to understand how to find the domain and ranges of functions.
thank you finally somebody that made it easy and not so complicated. Thanks again
I find this guys Math videos entertaining.
Wish he was my teacher, cause my math teacher, is confusing, takes too fast, and works problems fast, and sometimes not finishing em.
I'm half way asleep and hardly understand a thing he's saying, I need to get some sleep, and then my little brain will work at its full strength again
You use [ ] (brackets) when the point is filled, which indicates that that point is included. While you use ( ) (parentheses) when the point is open, like the second graph, which indicates that that point isn't going to be included in your answer. Hope this helps :)
OMG thank you for the "not touching" trick. I was so stumped over this until now. thanks.
thank you so much @patrickjmt. i really appreciate your videos.
+Nisee E. glad i could help!
do you mean with the brackets [ or parentheses ( ? if there is a closed, filled in circle you include the value. if there is an open circle, you do NOT include that value
You made this complicated work looks so easy ...
Well done
Wow! This is the most useful kind of information I could have as a student. Great job keeping it simple and explaining it well.
Thanks so much! That last example is similar to the problem I was stuck on. I didn't know what to do with the gap. This helped a lot : )
I struggled a lot with this concept but can understand it well now.. thank yoU!
Very useful, thank you very much! I've got a maths exam in a couple of weeks, and I just couldn't understand this before :)
A very clear video! I just wish you mentioned the union symbol U between the intervals rather than using comma. But I'll still use it for my students to view! Thank you!
Jenny Freidenreich why can’t you teach it
It is amazing that I can look in my math book and listen to the lecture and not get this stuff in hours whereas I can find a video and understand it in minutes.
I can't thank you enough for making these vids!
@313Darnell313 i have no idea what that means
i know this is old but thanks so much for this, i have a test tmmr and my teacher cant teach lol
you are welcome and good luck!
im pretty sure that verbal communication and calculation are separate areas of the brain.
Clarissa S same
Same
Girl same
Great Explanation! gonna pass this part on my Trig. quiz tomorrow..thank you!
I love it how you explain this all, it makes more sense to me :D I love how you use sharpie, so sure of your work you don't need a pencil. Hopefully with this ill be able to pass my advanced placement Math exam for college :) thanks for the knowledge!!
THANNNK YOU. I failed my test because I didn't know to use the "infinity" sign and when I got it back I was confused by my teachers infinity markings but now I understand:)
just a reminder, the lowest number is always on the left, for example 5 and -4 (IF Opened) = (-4,5), [ IF Closed]= [-4,5].
IDK how I found you but you are saving my life right now!!
happy i could help!
Thank you! I have a big exam tommorow this was very helpful! :)
Thank you. I couldn't figure out the use of [ vs ) because my teacher skipped over it in class. This cleared it up perfectly.
Thank you so much! I did not understand this in class but I think its clear now. Thanks!
You're such a great teacher! Thanks so much!!!!
great job ! you really helped me to understand the piece wise graph.
Thank you so much! i was absent and you really made me understand this. thanks so much
@patrickJMT instead of writing the domain and range using the inifinity symbol, use y belongs to the set of real numbers or x belongs to the set of real numbers than state if they are greater, equal, or less than a numer
Thank you! Being forced to take AP Math = these videos are my lifesaver
Thank you for made this video!!! Really clear explanation!! Thank you!
@AsnLinh keep watching and i will be : )
This is perfectly described. Thank you for taking the time to make this video!
thanks man really gonna help with my IB midterms
Dude....You are AWESOME!
The solid dot means that x=8 is included, hence the square bracket. The open circle at x=-6 indicates that it is not included, hence the open circle.
You have relieved my life
The pen trick helped so much, thank you!!
glad it helped! :)
I love you! Thank you much. Love the way u teach & explain
@3:48 how can this be only one function or it is two functions? and what is the type of this function ?
THANK YOU! Graphs for me are a little more difficult to comprehend. So this helped a lot!
Thank you for this extremely helpful video!
Well that was easy and straight forward, cheers!
Thanks i just Subscribed and you are a great teacher
thank you so much, i have never understood the brackets and parentheses thing before.
This really helped jog my memory after all I'm taking hsa early!
Thank you so much, after a year of confusion I finally get this. ^_^
Awesome way of explaining ... Really Liked :)
I am so blessed to have you in my life!!!
great vid, my teacher went through this way too quickly, that pen sliding helps a lot :D
You sir have helped me TREMENDOUSLY!!! thank you so much:-D
I love your handwriting! It should be its own font haha. Nice video too, thanks :D
TE AMO , makes everything crystal clear
Man when ever i need help i look up patrickJMT everytime
@bilibob32352 but thanks for the compliment ; )
thanks m8 I really needed help with domain and range with graphs
how you wrote the domain and range graph at 2:55, would that be the same as D: x>o and R: x>(or)= 5 ? my teacher doesn't use brackets or parenthesis in class...
Brackets are used when the point is INCLUDED or is a SOLID POINT. Parenthesis are used when the point is NOT INCLUDED or is an OPEN POINT.
you should watch my video on ' interval notation '
@louthomasTV : )
@bilibob32352 yes, nothing like a career of being underpaid, and under appreciated! nothing more fun than having a class full of students texting each other on their phones while you stand there and waste your time.
This really helps, but do you have anything on inequalitys?
Beautiful examples!
Thank you so much man this helped out a bunch
Thank you for your help!
Thank you so much you really helped me with the domain and range👍😍
@itsonlyyou04 For example, reading {y|y>0} would be y is the set of all real numbers such that ( | ) y is greater than 0. It's just saying the line will go on forever past 0, and must be greater than 0. Hope this helps.