Quadratic Functions: Discriminant (How Many Roots?)

This video describes how to determine how many solutions or roots there are in a quadratic function. The formula used to make this determination is called the discriminant.

[@NoahsRareRecords]

I know this video was posted 4 years ago but i wanted to say thank you for helping me so much, i was very confused before this.

[@FerranteMath]

Glad it helped 🙂

[@agosutemiloluwatadagbe2484]

Im so happy i found this video😭😭😭i learnt more in 4 mins than in 2hrs. Thank you so much i love your teaching

[@FerranteMath]

Glad it was helpful!

[@FerranteMath]

you're very welcome

[@notdetox]

Hey man, just wanted to say thanks I had a test the next day and this video helped me get a 95% thank you so much for the help. 🎉🎉

[@FerranteMath]

That's great 👍 glad it helped you out

[@muditmishra9054]

Thank you!! I was really confused in discriminant thing and you cleared my doubt 😃😃

[@FerranteMath]

Most welcome 😊

[@chakravarthit.7259]

Great. Straight to the point. Thank you @FerranteMath

[@FerranteMath]

Excellent! You're very welcome.

[@praharshithayagamuri6963]

Hi, thank you!! This is really helpful for me. I like your teaching.

[@FerranteMath]

thank you!

[@jhope4552]

your handwriting is so neat!

[@FerranteMath]

Thank you. I have to write neatly or I can't read my own writing :)

[@chartonkabwe849]

@@FerranteMath 😂That happens to me as well and it results in taking imaginary one😅..So i make sure it's neat and clear.

[@abhinandansharma5151]

The first equation is not gonna have any real root while the second one has a single real root, i hope i am right btw nice explanation ❤

[@flinzart]

Thank you!! This was really helpful!!

[@FerranteMath]

you're very welcome!

[@jimmyyang4779]

I wish you were my math teacher

[@FerranteMath]

Thanks Jimmy!

[@moustafatittos]

Thank you so much. If the discriminant is less than zero no real roots and it's negative so why is the U shape at the top towards the positive y and not down towards the negative y? Is it because it's an imaginary number? I have seen some other videos make the U shape down when the discriminant is less than zero but they didn't explain why? Can you please explain if it's possible? Many thanks

[@DevDev-bh9op]

you seem like a great teacher

[@FerranteMath]

Hey Dev, I really appreciate that! I do really like teaching 🙏

[@katrinamoussawi3554]

Thank you so much!!

[@FerranteMath]

you're welcome!

[@user-vo1wf8zg2b]

great video omg

[@FerranteMath]

Glad you liked it!

[@yousafquraishi5915]

Thanks helpful

[@FerranteMath]

You're welcome Yousaf.

[@stillnai]

i like your writing

[@FerranteMath]

Thank you 😊

[@cxerxl]

Should I draw this on normal page or graph paper???
But i wanna use graph paper!

[@FerranteMath]

use graph paper

[@AdnanKhan-rq1cb]

What is the role of discriminant in equation and why we using discriminat as (b^2-4ac)

[@FerranteMath]

Good question. The discriminant indicates the type of, and how many solutions there are for the equation.

[@maxyap424]

@@FerranteMath why does the discriminant affect the types of roots for a quadratic equation

[@ivygonzalez1041]

SAT looking good

[@FerranteMath]

Good luck!

[@praharshithayagamuri6963]

Hey, can you link the answer sheet

[@FerranteMath]

Sure Praharshitha. Here you go ...
docs.google.com/document/d/1nDB8nzJGjs8D2n5jdp2N93yPHZpAXFnJnGRz-nsLIEU/edit?usp=sharing

[@praharshithayagamuri6963]

Thank you

[@ujjwalyadav2606]

What is your country name?..hii i am indian i like it

[@FerranteMath]

hello Gopal. I'm from the United States. California.

[@theophonchana5025]

if b^(2) - 4ac < 0, there's no real solution

[@FerranteMath]

That is correct. No real number solutions, only imaginary numbers

[@knansxliyev9266]

Super.but l can not speak english.l am from Azerbaijan.

[@FerranteMath]

Thank you for watching my videos. I think you can turn on the translator? I've never used it but heard it works.