Identifying Linear Functions

[@samrenaud1793]

Legend says he’s still hearting comments

[@dawsonwelch5775]

Looks like it

[@johnfields2966]

thanks a lot. this helped with my algebra homework. I'm taking algebra in 8th grade.

[@niwexie9900]

me 2

[@aliamarneh2320]

John Fields Im taking 9th grade.

[@leenatez6504]

Same

[@leenatez6504]

8th

[@tobiasdaniel8116]

I’m taking it in 6th grade

[@shisui9527]

This video is helping me 11 years in the future, thank you so much

[@Deadshot-fi5qe]

Thank you from the future, I’m in a functions quiz right now.

[@izayaelix324]

I swear I shouldn't be doing this in 8th lmao 😂

[@mvuzi3571]

im learning this in 7th lmao

[@rakanidreis]

@@mvuzi3571 I’m doing this in 9th 😳😳😳😳😳😳😳

[@bailey133]

I’m doing this in 7th ✌️

[@mabezoids]

holy heck im doing this in 11th hhhhhh

[@quintster7125]

Bruh I'm doing this in 10th and I'm struggling 😂😂😂

[@Gnome_me8]

The 7 minutes lesson was more helpful than the 7 page module ngl

[@jacksonwilliams7213]

Super super helpful, didn’t understand before, but now I do. Thanks a lot

[@spawn-_-1883]

thank you so much. i was struggling with the equations so this helped me for sure!

[@realitycousintv8085]

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

[@niwexie9900]

thanks dude i am having a first term exam in this lesson and that vid helped me alot thx

[@irfanalhasani992]

Dude you legit just saved my life, thanks

[@sylviabarlow1682]

This helped me tremendously! Thank you very much!

[@Zeph39]

Thanks so much, I've been looking for this kind of topic because I'm working on a quiz right now

[@MrTBEEF]

This video guarantees a like and a sub

[@dawsonwelch5775]

He really is still hearting comments. What a legend.

[@MartyBrandl]

Well, the majority of the time this video has been posted "hearting" comments wasn't even a thing! LOL! 😆

[@Salukis]

Thanks a lot. I have ADHD and sometimes I have trouble learning the concepts that my teacher tells us.

[@e.e9453]

thank you so much this will help in my final exam tomorow

[@DariamCW]

Myths say he still hearts comments who knowsss...

[@dylanduvall4846]

Thank you so much this helped me a lot I have my eoc today

[@nicholebulandres5620]

thank youuuuuu, istg it's extremely helpful!

[@mckencysaracay7227]

I’m from the future and I would like to thank you cause I’m in the middle of a math test-

[@Jahcapone_]

Same😁

[@adog5999]

@@Jahcapone_ yeah

[@LM-th8cw]

Very helpful!! Thank you so much 😃

[@kevinpapageorge2476]

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.

[@adriannesalazar67]

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

[@YaLikeJazz615]

Great video, thank you!

[@dylansaintmartin4580]

Tysm! Now I understand.

[@madmattness]

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

[@TheLovaticFandomChannel]

That's about the only thing that's wrong. Everything else is fine.

[@rod2459]

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.

[@vlogwithbrownie]

Matt Apeland yeah that confused me

[@tobiasdaniel8116]

He wasn’t saying that in the video though it seemed like that

[@Letlovelead_]

Thanks a lot well explained 👏🏾

[@mahermosally6691]

thank u so much this really helped me in the english test i dont get why people are using calculators in an english test

[@arielcarino9404]

nice tutorial

[@mcdonaldmindset4577]

This helped so much

[@MrTBEEF]

thank you for this video

[@GDCyberHehe]

i am in 4th grade LOL and i am doing this . people really love math

[@angelixclol]

How are you now? Smartest kid in the bunch?

[@GDCyberHehe]

@@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.

[@angelixclol]

@@GDCyberHehe lmao, I was never a math wizz, currently in ninth watching this video for my assignment that i didn't even do

[@GDCyberHehe]

@@angelixclol im in 8th and im close to learning this cuz we in an accelerated algerba course in my school and stuff

[@angelixclol]

@@GDCyberHehe tight shit, gl gang, highschool'll be aight if ur w the right people

[@faridajamal1095]

Thank you greatly appreciated

[@manubhandari5818]

Thanks for your help

[@theyab4422]

Thanks that help me alot 👍

[@meghanhardin6601]

Does it have to be addition or subtraction or would multiplication and division work as well?

[@MartyBrandl]

It depends what's going on with the variables. Give me an example of what you are thinking of?

[@meghanhardin6601]

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.

[@MartyBrandl]

@@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! :-)

[@gracej1931]

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?

[@MartyBrandl]

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! 👍

[@Veloq8]

bro thank you so much

[@musabharare3671]

Nice بالعربي رائع

[@Prince972_]

Thanks!

[@matthewssolon7509]

thank you from 2021

[@thatomofolo452]

Thanks 👍👍😌

[@adonay4048]

Thank You‼️

[@MystNAE]

If it makes a V shape is it linear?

[@MartyBrandl]

A V-shape would be an absolute value graph. 👍

[@MystNAE]

@@MartyBrandl so it wouldn’t be linear. Thank you 🙏

[@limonatalem5719]

Thanks so much 👻

[@adwm4343]

Thank u

[@raymondmora5141]

thanks much!

[@CrackedControllerBros]

sigma maths teacher

[@sushixtacoferret3174]

I just love doing this stuff in the 7th grade 😭

[@prahasitha]

Me too lol

[@Yazeed_i]

Thx man

[@lostlevi4960]

Me an 11th grader coming back to remember and help lil bro

[@IndigoXYZ18]

You must be a fellow Canadian, or live near our boarder.

[@lukemartell2005]

Legend has it

[@ryanbraunsdorf2879]

what

[@pauljohnson600]

1:17 you pointed at a horizontal line and called it a vertical line. did you make a mistake or did I misunderstand you?

[@MartyBrandl]

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!

[@pauljohnson600]

@@MartyBrandl thanks, it does now

[@vLoveSosaa]

How come at 2:09 it is not a function I can see how it’s a linear but why not a function?

[@MartyBrandl]

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!! 😊

[@rahimislam7164]

My maths teacher gave me 41 pages of this for online school and she hasn't told us a thing about this

[@MikySubs]

gracias

[@parkerharris5570]

Thanks

[@benhamilton3403]

I am 12 this is so easy and if. Took my GCSEs now I would gat a b+

[@benhamilton3403]

I'm y7

[@licecollector6199]

I don't understand the vertical line test

[@floralau8403]

Paper Plate no parts of the line (lets say the blue one)will be on the same vertical line hope u understand ;)

[@khalifaalshaer4061]

If more than one point is on a line it does not pass btw its been 2 years

[@wendypino9545]

square rut

[@jessie5159]

I feel so stupid while watching this

[@MartyBrandl]

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! 👍

[@BriIliance]

Nice nvm I get it

[@ljgamer8811]

What if the x=0

[@MartyBrandl]

An x = line is a vertical line. It would fail the vertical line test, so it would not be a function.

[@ljgamer8811]

@@MartyBrandl thanks

[@minni3_mous3]

ok...........

[@samerelmiari6939]

OMg thx

[@wonglee4369]

linear funtion ratatatao

[@michaelafowler6594]

This helped me so much, thank you!

[@irfanalhasani992]

Dude you legit just saved my life, thanks

[@Bludbuster]

Thanks!