Effect of a,b,c on Quadratic 

best video ever on parabola, and no one teach this... this is most basic thing one should know

About "b" is tricky...wow Thank you

This helped me so much... I was soo confused but your video really helped!

Great video, a classic. I've found that all simplistic and well-explaining math videos are at least 10 years old!

Excellent work Mr.David!. Great service to students.

why the hell don't they tell us this when it's so simple. I was under the impression the bx was just too advanced for us to understand yet so all we needed to know is that it was part of the quadratic formula, but all it was just the slope at the y-intercept.. The only justification I can think for this is that they may want to teach derivatives or something first but it's not that complex to need knowledge of instantaneous slope. I have suffered since 8th grade, agonizing over what cryptic meaning it must have what a let down

thanks to you i can get my math final done :)))

Oh man, the effect of the B value hit me in 4:34, fire video to this day

Thank you for actually explaining this instead of saying ‘b is the coefficient of x’ 😂

you explained that like a champ

Thank you so much... You made it so easy to understand... Was getting confused again and again... Thanks a ton!!

thank you so much!! it's very intuitive to see this; I've been searching for a video like that since a long time;

Perfect explanation

Turn on the captions to understand the concept (its a very good explanation) thanku sir

Absoulte legend for explaining this ❤❤

you are doing god's work

Really helpful. Thank you.

This is how he should have explained it Say for example we have(the question is draw a rough sketch of a parabola/quadratic function) a>0 which means it's a positive number b>0 which means it's a positive number c

Thanks so much.... This was very helpful. Finally understood why quadratic equation forms parabola.

Fantastic video. Thank you!

Thank you!

Thank you for the video. It was very helpful and it served its purpose. Just, may i ask which like program you use to present these different functions ? It would make things easier for me to better understand as i continue studying.

Ty u sir this helped me a lot

What's the name of this software, where you play with graphs?

Thank you sir..

Thank you so much

hi i just have a question! so why isn't there a parameter that just shifts the quadratic left and right simply, like c?

Thanx a lottt..

thanks bro

wow thanks a lot

thnx a lot sir

Thank you.

Which program or software did you used for graphing in this video? Thank you.

Thanks

Still don't get it.

500th like...😁

I've been playing with a parabola for 30 minutes now. Reality can be whatever I want.

May I please ask what program you are using? Thank you

Brilliant thank you

cool it bro ur blowin out my speakers

THANKS

Wow ❤️

does anyone know what graphing tool this is?

I understood not one word im doomed

Could your voice be any softer