What about (1,5) (2,10) (4,20). This is linear but the method you demonstrated would indicate nonlinear. a change in the x is fine as long as the change in x divided by the change in y is constant.
Vertical lines are the only type of line that is not a function. It would fail the vertical line test because on the line it would touch an infinite number of times. Another way to look at it would be that all the x-values are the same. I hope that helps! Good question!! 😊
You can't do a vertical line test from left to right, that would be horizontal. Verticals is up and down and you were doing it from left to right and calling it a verticals line test. So that's wrong so no offense but if that's wrong then who knows what else is in this video
The vertical line test goes from left to right as you move it; however the line goes from top to bottom. Hence the word "vertical". You are checking to see if the line touches two or more points (y values) for a given x value. If it does, it isn't a function.
If it passes the vertical line test, it is a function. A "squiggly" line would be nonlinear. It has to be straight to be linear. I hope that helps! Keep working hard and asking great questions! 👍
Marty Brandl sorry for being late but this is an example: Domain: 1,2,3,4 Range: 3,5,7,9 ^This would be addition Domain: 1,2,3,4 Range: 2,4,6,8 ^This would be multiplication. I am having trouble differentiating between linear functions and direct variation.
@@meghanhardin6601 Actually, both of those would be linear. Another way you could look at it is by graphing the ordered pairs and checking to see if they form a line. Also, direct variation is just a special form of a linear equation where the y-intercept is 0. I hope that helps! Please let me know if you have further questions! Keep after it! You can do it! :-)
I can see how that's confusing. I meant that if you moved a vertical line across the graph (the horizontal movement). Sorry for the confusion! I hope that makes sense! Thanks for asking!
@@angelixclol holy shi i forgot abt this comment 😭😭 im doing pretty good the math interest sorta slowed down. I was one of the smartest in 6th grade but i sorta turned my interest to computer science lol.
Why is that? You're learning! That's the most important thing. Everyone is different. Just compare yourself to you. Are you getting better? You can do it! 👍
Legend says he’s still hearting comments
Looks like it
This video is helping me 11 years in the future, thank you so much
thanks a lot. this helped with my algebra homework. I'm taking algebra in 8th grade.
me 2
John Fields Im taking 9th grade.
Same
8th
I’m taking it in 6th grade
The 7 minutes lesson was more helpful than the 7 page module ngl
Thank you from the future, I’m in a functions quiz right now.
thankyou so much i’m taking algebra 1 in 8th grade and had no idea what this was i’m so thankful for your video
He really is still hearting comments. What a legend.
Well, the majority of the time this video has been posted "hearting" comments wasn't even a thing! LOL! 😆
Super super helpful, didn’t understand before, but now I do. Thanks a lot
Dude you legit just saved my life, thanks
thanks dude i am having a first term exam in this lesson and that vid helped me alot thx
thank you so much. i was struggling with the equations so this helped me for sure!
I swear I shouldn't be doing this in 8th lmao 😂
im learning this in 7th lmao
@@mvuzi3571 I’m doing this in 9th 😳😳😳😳😳😳😳
I’m doing this in 7th ✌️
holy heck im doing this in 11th hhhhhh
Bruh I'm doing this in 10th and I'm struggling 😂😂😂
Thanks so much, I've been looking for this kind of topic because I'm working on a quiz right now
This video guarantees a like and a sub
What about (1,5) (2,10) (4,20). This is linear but the method you demonstrated would indicate nonlinear. a change in the x is fine as long as the change in x divided by the change in y is constant.
Not even that, like you said it is liner, all he had to do was multiply by 2 with the x
1*2= 2
2*2= 4
4*2= 8
8*2= 16
This helped me tremendously! Thank you very much!
thank you so much this will help in my final exam tomorow
How come at 2:09 it is not a function I can see how it’s a linear but why not a function?
Vertical lines are the only type of line that is not a function. It would fail the vertical line test because on the line it would touch an infinite number of times. Another way to look at it would be that all the x-values are the same.
I hope that helps! Good question!! 😊
You can't do a vertical line test from left to right, that would be horizontal. Verticals is up and down and you were doing it from left to right and calling it a verticals line test. So that's wrong so no offense but if that's wrong then who knows what else is in this video
That's about the only thing that's wrong. Everything else is fine.
The vertical line test goes from left to right as you move it; however the line goes from top to bottom. Hence the word "vertical". You are checking to see if the line touches two or more points (y values) for a given x value. If it does, it isn't a function.
Matt Apeland yeah that confused me
He wasn’t saying that in the video though it seemed like that
thank youuuuuu, istg it's extremely helpful!
Thanks a lot. I have ADHD and sometimes I have trouble learning the concepts that my teacher tells us.
I’m from the future and I would like to thank you cause I’m in the middle of a math test-
Same😁
@@Jahcapone_ yeah
If the line is squiggly and going up and down is it a function or non function? And is it a Non linear or linear?
If it passes the vertical line test, it is a function. A "squiggly" line would be nonlinear. It has to be straight to be linear.
I hope that helps! Keep working hard and asking great questions! 👍
thank u so much this really helped me in the english test i dont get why people are using calculators in an english test
Very helpful!! Thank you so much 😃
Does it have to be addition or subtraction or would multiplication and division work as well?
It depends what's going on with the variables. Give me an example of what you are thinking of?
Marty Brandl sorry for being late but this is an example:
Domain: 1,2,3,4
Range: 3,5,7,9
^This would be addition
Domain: 1,2,3,4
Range: 2,4,6,8
^This would be multiplication.
I am having trouble differentiating between linear functions and direct variation.
@@meghanhardin6601 Actually, both of those would be linear. Another way you could look at it is by graphing the ordered pairs and checking to see if they form a line. Also, direct variation is just a special form of a linear equation where the y-intercept is 0.
I hope that helps! Please let me know if you have further questions! Keep after it! You can do it! :-)
Thank you so much this helped me a lot I have my eoc today
Myths say he still hearts comments who knowsss...
1:17 you pointed at a horizontal line and called it a vertical line. did you make a mistake or did I misunderstand you?
I can see how that's confusing. I meant that if you moved a vertical line across the graph (the horizontal movement). Sorry for the confusion! I hope that makes sense! Thanks for asking!
@@MartyBrandl thanks, it does now
Great video, thank you!
If it makes a V shape is it linear?
A V-shape would be an absolute value graph. 👍
@@MartyBrandl so it wouldn’t be linear. Thank you 🙏
Thanks a lot well explained 👏🏾
This helped so much
Tysm! Now I understand.
i am in 4th grade LOL and i am doing this . people really love math
How are you now? Smartest kid in the bunch?
@@angelixclol holy shi i forgot abt this comment 😭😭 im doing pretty good the math interest sorta slowed down. I was one of the smartest in 6th grade but i sorta turned my interest to computer science lol.
@@GDCyberHehe lmao, I was never a math wizz, currently in ninth watching this video for my assignment that i didn't even do
@@angelixclol im in 8th and im close to learning this cuz we in an accelerated algerba course in my school and stuff
@@GDCyberHehe tight shit, gl gang, highschool'll be aight if ur w the right people
thank you for this video
Thanks that help me alot
👍
Thank you greatly appreciated
Thanks for your help
I don't understand the vertical line test
Paper Plate no parts of the line (lets say the blue one)will be on the same vertical line hope u understand ;)
If more than one point is on a line it does not pass btw its been 2 years
nice tutorial
Thank You‼️
Thanks 👍👍😌
thank you from 2021
Thanks so much 👻
Thanks!
bro thank you so much
Thank u
I just love doing this stuff in the 7th grade 😭
Me too lol
Legend has it
what
Will he heart my comment after 12 years?
Dang!
gracias
thanks much!
You must be a fellow Canadian, or live near our boarder.
My maths teacher gave me 41 pages of this for online school and she hasn't told us a thing about this
What if the x=0
An x = line is a vertical line. It would fail the vertical line test, so it would not be a function.
@@MartyBrandl thanks
Thx man
Me an 11th grader coming back to remember and help lil bro
square rut
Thanks
I am 12 this is so easy and if. Took my GCSEs now I would gat a b+
I'm y7
Nice بالعربي رائع
sigma maths teacher
ok...........
I feel so stupid while watching this
Why is that? You're learning! That's the most important thing. Everyone is different. Just compare yourself to you. Are you getting better? You can do it! 👍
OMg thx
Nice nvm I get it
linear funtion ratatatao
This helped me so much, thank you!
Dude you legit just saved my life, thanks
Thanks!