Linearna funkcija je kot matematična formula, ki opisuje, kako se... Show more
Matematika
Angleščina
GeografijaSign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
102
•
Updated Apr 15, 2026
•
Linearna funkcija - Osnovne informacije in risanje grafa
1 / 5
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 a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and 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
Most popular content
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
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
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
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
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 apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
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
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
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
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
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 apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
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 a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and 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.
0
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Mock Exam
Quiz
Flashcards
Essay
Most popular content in Matematika
Most popular content
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
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
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
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
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 apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
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
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
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
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
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 apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user