Linearna funkcija je kot matematična formula, ki opisuje, kako se... Show more
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Updated Apr 15, 2026
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Linearna funkcija - Osnovne informacije in risanje grafa
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Kaj je linearna funkcija?
Predstavljaj si, da kupuješ sladoled za 2 evra na kos. Linearna funkcija ti pove, koliko boš plačal za katerokoli število sladoledov – to je matematična povezava, kjer se stvari spreminjajo enakomerno.
Vsaka linearna funkcija ima enačbo y = kx + n. Tu je x tisto, kar ti izbereš (število sladoledov), y pa je rezultat (cena). Preprosto, kajne?
Smerni koeficient k ti pove, kako strma je premica. Če je k pozitiven, premica gre navzgor, če je negativen, gre navzdol. Začetna vrednost n pa ti pove, kje premica seka y-os.
💡 Pomni: Graf linearne funkcije je vedno premica – ne krivulja, ne zigzag, ampak ravna črta!
Kako narišeš graf linearne funkcije
Ne skrbi, risanje premice je lažje, kot si misliš! Potrebuješ le dve točki in ravnilo.
Začni z začetno vrednostjo n – to je tvoja prva točka na koordinatah (0, n). Enostavno jo označiš na y-osi.
Za drugo točko uporabi smerni koeficient k. Zapiši ga kot ulomek – na primer, če je k = 2, zapiši k = 2/1. Številka zgoraj ti pove, za koliko greš gor ali dol, številka spodaj pa, za koliko greš v desno.
Od prve točke se premakni po tem pravilu in dobiš drugo točko. Nato samo poveži obe točki z ravnilom in voilà – imaš premico!
💡 Trik: Če k ni ulomek, ga vedno zapiši z imenovalcem 1. Tako k = 3 postane k = 3/1.
Rešeni primeri korak za korakom
Poglejmo si y = 2x + 1. Tu je k = 2 in n = 1. Prva točka je torej (0, 1) na y-osi.
Ker je k = 2 = 2/1, se od točke (0, 1) premakneš 1 v desno in 2 navzgor. Prideš do točke (1, 3). Poveži obe točki in imaš premico!
Pri y = -x + 4 pazi na negativni predznak! Tu je k = -1 in n = 4. Prva točka je (0, 4), potem pa greš 1 v desno in 1 navzdol, ker je k negativen. Druga točka je (1, 3).
Če si narisal pravilno, lahko preveriš z vstavljanjem različnih vrednosti x v enačbo. Koordinate morajo sedeti na tvojo premico.
💡 Preverjanje: Vedno izberi tretjo točko in preveri, če leži na premici – tako veš, da je risba pravilna!
Posebni primeri in triki za teste
Konstantna funkcija je samo vodoravna premica, na primer y = 3. Premo sorazmerje pa gre skozi izhodišče, kot y = 2x.
Pri negativnem k se premica spušča navzdol – to pomeni, da funkcija pada. Pri pozitivnem k pa se dviguje navzgor in funkcija narašča.
Negativen n pomeni, da premica seka y-os pod x-osjo, pozitiven n pa nad njo. To ti takoj pove, kje začeti risanje.
Na testih vedno uporabljaj ravnilo in nariši premico čez cel koordinatni sistem. Učitelji to opazijo in cenijo natančnost!
💡 Za test: Zapomni si y = kx + n, kjer k = strmina in n = začetek na y-osi. To je vse, kar rabiš!
Hitri povzetek za ponavljanje
Osnovna enačba: y = kx + n. K ti pove strmino , n pa, kje sekati y-os.
Postopek risanja: Označi točko (0, n), uporabi k za premik do druge točke, poveži z ravnilom. Končano!
Posebni primeri: Če je n = 0, gre premica skozi izhodišče. Če je k = 0, dobiš vodoravno premico.
Vedno preveri svojo premico z vstavljanjem testne točke v enačbo. Matematika je natančna – če se koordinate ujemajo, si naredil pravilno.
💡 Končni nasvet: Vadba dela mojstra! Čim več premic narišeš, tem lažje ti bo šlo. Linearna funkcija je temelj za težjo snov, zato jo obvladaj do potankosti.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Most popular content in Matematika
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Students love us — and so will you.
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4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Linearna funkcija - Osnovne informacije in risanje grafa
Linearna funkcija je kot matematična formula, ki opisuje, kako se ena stvar spreminja z drugo – na primer, koliko stane večje število pijač ali kako daleč prideš, če hodiš z enako hitrostjo. Njen graf je vedno premica, zato jo je... Show more
Kaj je linearna funkcija?
Predstavljaj si, da kupuješ sladoled za 2 evra na kos. Linearna funkcija ti pove, koliko boš plačal za katerokoli število sladoledov – to je matematična povezava, kjer se stvari spreminjajo enakomerno.
Vsaka linearna funkcija ima enačbo y = kx + n. Tu je x tisto, kar ti izbereš (število sladoledov), y pa je rezultat (cena). Preprosto, kajne?
Smerni koeficient k ti pove, kako strma je premica. Če je k pozitiven, premica gre navzgor, če je negativen, gre navzdol. Začetna vrednost n pa ti pove, kje premica seka y-os.
💡 Pomni: Graf linearne funkcije je vedno premica – ne krivulja, ne zigzag, ampak ravna črta!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Kako narišeš graf linearne funkcije
Ne skrbi, risanje premice je lažje, kot si misliš! Potrebuješ le dve točki in ravnilo.
Začni z začetno vrednostjo n – to je tvoja prva točka na koordinatah (0, n). Enostavno jo označiš na y-osi.
Za drugo točko uporabi smerni koeficient k. Zapiši ga kot ulomek – na primer, če je k = 2, zapiši k = 2/1. Številka zgoraj ti pove, za koliko greš gor ali dol, številka spodaj pa, za koliko greš v desno.
Od prve točke se premakni po tem pravilu in dobiš drugo točko. Nato samo poveži obe točki z ravnilom in voilà – imaš premico!
💡 Trik: Če k ni ulomek, ga vedno zapiši z imenovalcem 1. Tako k = 3 postane k = 3/1.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Rešeni primeri korak za korakom
Poglejmo si y = 2x + 1. Tu je k = 2 in n = 1. Prva točka je torej (0, 1) na y-osi.
Ker je k = 2 = 2/1, se od točke (0, 1) premakneš 1 v desno in 2 navzgor. Prideš do točke (1, 3). Poveži obe točki in imaš premico!
Pri y = -x + 4 pazi na negativni predznak! Tu je k = -1 in n = 4. Prva točka je (0, 4), potem pa greš 1 v desno in 1 navzdol, ker je k negativen. Druga točka je (1, 3).
Če si narisal pravilno, lahko preveriš z vstavljanjem različnih vrednosti x v enačbo. Koordinate morajo sedeti na tvojo premico.
💡 Preverjanje: Vedno izberi tretjo točko in preveri, če leži na premici – tako veš, da je risba pravilna!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Posebni primeri in triki za teste
Konstantna funkcija je samo vodoravna premica, na primer y = 3. Premo sorazmerje pa gre skozi izhodišče, kot y = 2x.
Pri negativnem k se premica spušča navzdol – to pomeni, da funkcija pada. Pri pozitivnem k pa se dviguje navzgor in funkcija narašča.
Negativen n pomeni, da premica seka y-os pod x-osjo, pozitiven n pa nad njo. To ti takoj pove, kje začeti risanje.
Na testih vedno uporabljaj ravnilo in nariši premico čez cel koordinatni sistem. Učitelji to opazijo in cenijo natančnost!
💡 Za test: Zapomni si y = kx + n, kjer k = strmina in n = začetek na y-osi. To je vse, kar rabiš!
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
Hitri povzetek za ponavljanje
Osnovna enačba: y = kx + n. K ti pove strmino , n pa, kje sekati y-os.
Postopek risanja: Označi točko (0, n), uporabi k za premik do druge točke, poveži z ravnilom. Končano!
Posebni primeri: Če je n = 0, gre premica skozi izhodišče. Če je k = 0, dobiš vodoravno premico.
Vedno preveri svojo premico z vstavljanjem testne točke v enačbo. Matematika je natančna – če se koordinate ujemajo, si naredil pravilno.
💡 Končni nasvet: Vadba dela mojstra! Čim več premic narišeš, tem lažje ti bo šlo. Linearna funkcija je temelj za težjo snov, zato jo obvladaj do potankosti.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Most popular content in Matematika
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Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.6/5
App Store
4.7/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user