Graphs of linear equations | Linear equations and functions | 8th grade | Khan Academy
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- čas přidán 8. 09. 2024
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8th grade on Khan Academy: 8th grade is all about tackling the meat of algebra and getting exposure to some of the foundational concepts in geometry. If you get this stuff (and you should because you're incredibly persistent), the rest of your life will be easy. Okay, maybe not your whole life, but at least your mathematical life. Seriously, if you really get the equations and functions stuff we cover here, most of high school will feel intuitive, even relaxing. (Content was selected for this grade level based on a typical curriculum in the United States.)
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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math, please do us all a favor and solve your own problems
agreed and... fellow STAY
We do not need this , when we have a Job!
Be thankful math didn't marry sceince we would had 5x the problems math has now
Me: we don't care about your x and don't ask y
Silent wraith exactly what I wonder... what’s the point of learning math and use our brains when humans have calculators already
This educates me better than my school
Ben W our school makes us learn with this
u outta school yet bro?
Avocados from Mexico 🇲🇽
true that
@@flirkvslife2385 we are supposed to be learning how to pay bills and make money and learn stocks and such
POV: you weren't paying attention in math class
I was my teacher doesn't really explain it this well
No point when I could just watch one of these videos, they're so much more streamlined than any teacher I've ever had and it's not even close.
@@Troy_K Lol
_possibly..._
That’s probably why my teacher set us up on khan academy, he can’t even teach us properly lmao
The odd thing is, I'm a college student. I'm here as a refresher for our quiz today. XD
LegalWrights how’s life
how's life in college
How’s life
you graduated like this year congrats
Comgrats
Why does this guy do the lesson so fast and easy to understand in like less than 30 minutes when the real math teachers take a full period to talk about 1 lesson.
Because maths teachers generally have more responsibilities, for example they may have to explain things more than once due to kids not listening the first time or being late to class, spend time giving out homework, tell kids to not talk over them, do the register. These things are not too time consuming individually but they add up.
@@qfjd ya some people feel like there forced to learn about math so they don’t listen because of it.
Meanwhile on the other hand when you look up a math video on your free time it’s not as forced and you genuinely want to learn something (even if the only reason you want to learn it is to dodge an F as your mark).
@@Bigbagofgamer you’re in second grade?
@@Bigbagofgamer I think you’re too young to have a google acccount, google should do something about that
@@QUBIQUBED true
It's summer break in my country and I am still learning math.
End my life
your username tho
I work 4 the fbi
bruh your username
Hi I think math is life
Aldana Alkaabi it’s really amazing when everything connects
In 2 and a half minutes, I understood how to do my homework. I didn't get it after nearly 40 minutes of my teacher explaining the lesson. Thank you, Mr. Sal, for doing what you do!
In months to me
same his is so much better than my teacher trying to explain it
This video has saved my life, thank you soo much💖
Math test tomorrow 😁
Miriam 😂
lol same
Miriam how’d you do
same here
im already tracer
Anyone else here because their math teacher can’t teach 🤦🏿♂️
Lol hereeeee
Bro all my teacher does is just yell and yell and say that we are not paying attention 😔
@@hussenebrahem1008your 2 years late ☠☠☠
Frr here
Wow😊
Fun fact: you're here because of module or exam or quiz or online class.😂😂😂
You're not alone....
Read my mind
ii have a math exam tomorrow
Avocados from Mexico 🇲🇽
I’m taking a unit quiz online today ;w;
yes😭
I'm watching this because my school is closed from Coronavirus and I don't understand the lesson XD
The BEEs Same!
No 7th
Same i got a test on this
SAME
@Mulunesh Wobbema bruh i learned this in 5th grade
Khan academy has inspired me so much to start my own algebra channel! 👌
Every student should be able to understand their classes
@@danngo2758 Ah thanks! Appreciate it
Subscbd🖐
Keep going Chad! ❤
Subbed
𝑇ℎ𝑎𝑡'𝑠 𝑠𝑜 𝑠𝑤𝑒𝑒𝑡 ! 𝐼'𝑚 𝑠𝑢𝑏𝑏𝑖𝑛𝑔
Thanks to my loud classmates I couldn't hear my math teacher and at the end of the day I didn't learn anything in math😭😭 -2020
If only we could hear them today
AVOCADOS FROM MEXICO 🇲🇽
ughh I don't understand I'm so confused 😢😭I wanna cry
Lion 4hk ksa wtf
so true so true its a math fact
Same
uhhh
then cry!!!
I’m a sophomore, but man has linear relations kicked my but this year. I’m watching this to help me for my exam tomorrow
AVOCADOS FROM MEXICO 🇲🇽
This is why people on youtube are better teachers
I know I'm not the only one thinking that out of all the mathematicians there isn't an easier way to do algebra?
what grade do you take this is, I'm taking it in 8..
im taking it in 9
Abud Shirt end of 7th and early 8
Skeletøn Clique TØP LMAO
7th grade ;-;
Abud Shirt 7th
You are saving my life, ie my math mark, thank you so much! You teach in minutes what my math teacher can explain in hours and i actually understand you💖💖💖
Shannon Nickerson
AVOCADOS FROM MEXICO 🇲🇽
THANKS SO MUCH YOUR A LIFE SAVER My exam is tomorrow and I was panicking and this video has calmed me down so much
AVOCADOS FROM MEXICO 🇲🇽
this man has taught me more in 13 minutes than my math program has taught me in an hour.
real bro
You could get a more accurate answer from the kg/pounds conversion by creating a formula using rise/run, 20/9*k = p to convert kg to pounds then flip this into 9/20*p=k to convert kg to pounds.
A) 8.89 pounds
B) 20 pounds
C) 5.4 kg
D) 7.65 kg
im not joking when i tell u this literally saved me
Thank you! :) I had no idea about what my math teacher was talking about, now I won't fail my test!
It’s a teacher thing 🤪
Yo, this actually helped a lot, this a sick channel definitely gonna watch more often.
this video explained me something in 5 minutes what my teacher couldn't in a month. and english is not even my first language
Everytime I watch him, I always wonder how he writes so nice with a mouse
khan academy has saved my life I would be failing if this did not exist thank you so much!!!
this channel doesnt my main language i can understand batter than my school thanks khan academy
Doing Algebra I and II at age 13 - Mathway + Khan Academy have saved me SOOOO often.
Timelord Gaming same m8 I am in algebra l and ll i am in 8th grade m8
Timelord Gaming I'm currently in algebra 2 and I'm in 7th grade
try math antics
Xd
I had to learn this to help my son in eighth grade. This helped me more than any teacher I had in the 80s. I wish we had CZcams back then😔 this was so easy once I watched it a few times.
hey man i got 100 percent in my math thanks
AVOCADOS FROM MEXICO 🇲🇽
@@aimeeli6016 haha 😁
It’s amazing how you’re more helpful than when I’m not using Khan Academy
I looked at Khan website
and there is no pre vids/foundation to linear graph Algebra 1 section.
Would be helpful, if you had a video that was a "intro"
example
y=Mx+B (M is the slope, B is the intercept)(slope is Rise over Run)
Ax+By=C (replace X,Y with 0 and solve for each)
etc etc.
sometimes, besides just school, we need to learn things outside of your own world.
this guy with all of his videos is a literal saint. A blessing on earth. Thank you for ur contribution to society, you're a real one man
Thank you so much, this is big help for my GED math test.
It’s literally 13 years ago now????!!!!!
No wonder time flies by so quickly
I love this channel! Thank you so much!
AVOCADOS FROM MEXICO 🇲🇽
I have been struggling to understand this with my book. One video from you and I completely understand! Thank you
How do u draw the lines so perfect without a ruler I can't even do that with a ruler
Practice makes something
you taught me more in this video than my teacher could in 5 periods of 50 minutes
Klee W
The Thing My Teacher Couldnt Teach me In 3 Months, You Made me learn it in 13 Minutes, Thanks
Fr
So thankful for this channel, it's helping me get through my online math class.
thank you ;---; this saved my life
Thank you, this is straight forward and easy to understand. Appreciated.
Thank you so much Khan Academy! I have my test today and I need to review this!
I'm now able to understand linear graphs his teaching is unique and so simple to understand
Just turned 30 and haven’t had to use much algebra until Excel became part of my job. These videos have refreshed my brain and really helped out a lot!! Thanks!!
how's it going now?
@@evanbeck9360 yeah, how is it going??
𝑌𝑜𝑜𝑜𝑜 , ℎ𝑜𝑤'𝑠 𝑙𝑖𝑓𝑒 𝑚𝑎𝑛 ?
Bro is about to turn 40.
@@piccopug28 😭
I'm in 7th pre algebra advanced math ugh if I were here one day earlier ! Dang it I hate those kids in class that can't shut up when I'm trying to learn!😭
Thanks to you all you have helped me to overcome my fear for MATH'S
This was so, so helpful. Cheers!
AVOCADOS FROM MEXICO 🇲🇽
@@aimeeli6016 what?
Thank you. I'm trying to figure out if I can accurately graph out the possible lines, representing the "gross, monthly INCOME" from my "Social Security" payments. The first line, would be my "Early Retirement" rate, (about $1924/month), beginning when I reach 62 years of age.
Then, The second line, would be my "Full retirement" rate, which would be a greater monthly amount, ($2701/month), and, it would begin when I would reach 66 years, and 10 months of age...
Finally, these two inclined, linear lines, would begin at " y=$0.00 ", and increase, at their own rates, until they would eventually intersect, when I would reach almost 79 years of age!.... How can this be graphed, accurately, on a computer/graphing calculator?!
IMHO: I feel that I will be better off, by deciding to take my "EARLY retirement" amount, right away, rather than waiting until I reach 66y-10mo, because, I can use that money now, but, I might not live past 79 years old!, and so, I probably won't benefit significantly, by foolishly waiting to start taking it, at the later age, (66y-10mo), and, very likely, not collecting all, or even most of what they took from me, all the years that I was working hard...
SOCIAL SECURITY OUGHT TO BE an "OPT-IN/OPT-OUT" (VOLUNTEER) program!!! I could've invested ALL of that money, over many decades, and made many times more than what the Gov't would ever pay back to me!!....
(SSA) => WHAT A PONZI-SCHEME!!!....
Darn right about that ponzi scheme though. :(
hi
Well i was watching your videos and i think are so good, for this reason i have a question for u...... how i can create a ecuation????
i was in probability and stadistic and i used the method least square (minimum squares) for a lineal ecuation with only one variable
Whst are u saying
Omg this was so helpful thanks
This is so helpful omg 😭😭😭
Khan academy you Are my friend when I want to game and study at the same time
It all makes sense now... :D thank you so much!!!
Very helpful and nice teacher
Does his example refer to the linear function ax+b? If yes. Could please explain how?
I appreciate you time.
Hey you are probs not going to see this but I cannot stretch how helpful this was thank you
POV ur teacher's explanation doesn't make sense
Many many thanks to khan academy. ❤️ I thought i am not good at math actually the problem is no one can make me understand in the proper and easiest way like khan academy ❤️ it helps to regain my lost confidence ❤️
I'm the first person to reply and like ur comment. I want a lamborghini, if ur gunna say thanks
makes sooooomuch more sense!!!!!!!!!!!!!!! thx so much!!
have a math test Friday and this video helped me understand it so much better.
WooW! I learned more from his video than I did in math class....-_- makes me question the educational system
Thank You Sir! This video really helped me as in school, the teacher explained it so hurriedly, i didnt get to understand anything, today. So this really helped me and cleared all my doubts
Thanks bro I just understood the topic in just 2 minutes, my subject teacher just took the entire period to explain the topic😃🫡🫡
How about 6x-3y=0? x=(0,0) - y=(0,0) a third point to get a line how about (3,6). Any number will work won't it to get a line or s that wrong?
You broke my brian.
Khan teaches better than my mathematics teacher, who, mind you, has one hour to teach.
btw, if anyone is confused what hes saying, he says mostly about functions, cnverting x to y, also the functions are anything so yep, hopes this helps
That is a perfect and straightforward explanation. Thank you.
My teacher :not fun
This teacher : goodsoup
thank you so much my math teacher could not explain this to us for the life of her and now i understand thx so much have a nice day
Just loved it 😘😘😍😍😘😘
But won't found the same in the app
Milestones this morning..., THANK YOU MY DUDE
This video was a great help, even though algebra is super frustrating for me. Thanks for all of the help.
Equations was very confusing for me, but soon with practice I learned
Thank you for making me understand… I’m currently doing a pathways course and on my 1st class, didn’t understand some things. This helped clear up things. ❤
my math teacher has high expectation to us because we are the 1st section so he doesn't really explain that much and just go straight to answering problems and then let us do it. i hope you were my math teacher.
ngl but Khan Academy and Math Antics actually teach better than my teacher
Never let anyone tell you that you cant do it or that math is not your thing. Learning styles vary so just find your groove and enjoy the warm feelings of the "(: ahh haa :)" moments.
When you plug in x does there always have to be a negative number?
Also I'm not sure which numbers to plug in x. All the numbers I try to plug in equal fractions or decimals. Thanks.
I haven’t “marked as done” a thing in my online math class because I’m garbage- but it’s first quarter I have next quarter to do better if I can
Anyone else depending on khan academy for mid terms because you teacher makes no sense?
I swear you teach better than my 8th grade math teacher 😭🤚
If you want more practice on drawing linear equations, or solving them algebraically, I just uploaded two videos where I go through exercises step-by-step explaining everything I do along the way. Hopefully this will help some people that are struggling :)
Thankyou Thankyou so much this video helped me alot.
I was born in Turkey but ı am live in canada. My english is not good and ı need subtitles. This video helped me a lot. Thank you.
Anyways math exam Tomorrow and I'm still confused aha
you save my life bro thank you
God, this video came out ten years ago. I was 4 years old, going on 5. Jesus, that's crazy to think about.
Thank you so much I just started a new school and they were working on this and I had no idea what I was doing so you may have just saved me from getting grounded
if this guy was my teacher than we would get through a whole chapter of math in just 1 - 3 days
I have to learn this bc I need it for a test to register for a school out of my catchment area EEEE
Khan academy is an absolute life saver fr, my school teachers don’t even teach lol 😅
this vid helped me a lot.THANKS
Thank you so much. This helps a lot.
So actually we choose the numbers randomly? Like for the x in the table
Imagine he made this using a touchpad