Intro to Quadratic Functions (Relations) - Nerdstudy

Intro to Quadratic Relations and Second Differences! So far, we've looked mostly at linear relations. Now, we take a look at a completely different type of graph!

[yamaria]

He just taught me 1 week of work in 6 minutes, much appreciated

[jefferywilliams]

The visualisations are on point, the best I've seen in mathvideos so far- very logical and explanatory

[GodModeMotivate]

I am telling you! if EVERY subject were taught In a way like this where everything is so much more simple to understand, there would be MILLIONS of Harvard students and MILLIONS MORE of engineers and doctors

[rashidissa]

I'm 76 now but I am being reborn in Mathematics.The wonderful teaching by such teachers makes me wish to redo my Cambridge"O"to get better grade.I had a weak credit pass but I would sure earn a distinction today.

[shireenbrookes]

These are the best mathematics tutorials - I am struggling with Maths at Uni having only done GCSE maths, this is a great explanation of the basics.... please please can you do more. Thanks

[kelvinlee]

Really well crafted, explained well. Thank You. Animations help alot

[elenayijiazhu]

Best video on introducing quadratic functions I've seen yet. I tried a number of other introductory videos for this but I never understood them. Thank you so much!!

[MyKrabi]

Thank you so much! I kept re reading my textbook over and over - and with your video everything fell into place!

[crustyoldfart]

I haven't seen any other videos you have made so if my remarks are redundant please ignore !
This is obviously aimed at students who have not yet studied calculus, so the approach of first and second differences may well be revealing for them.
It might have been useful to introduce the idea behind the parabola based on the classic method by which it is generated. That is given a straight line and a fixed point not on the line, a parabola is the locus of all points which are such as to be equidistant from the point and the line. It might be useful also to point out that all parabolae are similar, just as all circles are similar, and by contrast all ellipses are NOT similar, neither are hyperbolae.
For academic rigour it should be demonstrated that the curve y=x^2 IS a parabola.
As a bonus for students with an enquiring mind a note that the term ' quadratic ' mean ' square ' might be appropriate ; presumably to use ' square ' in this context might cause confusion, but would be consistent with calling the next highest polynomial a ' cube '.

[jazminpardo]

OMG after watching 20 videos on this, your explanations were the best I understood. Thank you so much for this!!!

[AlessandroZir]

the first part of your video is very enlightening; I believe this kind of approach is the most useful to students; thanks!!

[jjkitty]

I myself do online school and have been struggling a lot lately. My teachers have tutorial videos that are so messy and confusing, I can't even understand my work, and when I send them an email for help, almost everything they say makes no sense and because of this, I almost failed my half-term report card.

This video cleared up literally all my confusion and I'll probably watch this channel for help with my math until I graduate. Thank you so much.

[idiotphobia]

THAT INTO THOUGH, It literally got me excited to learn about Functions LOL

[BobbiSmithinwuss]

the animation and how you show what it is and how it works is so perfect, and makes understanding it easier👏

[kzenrandom]

I know this is late but I would like to appreciate the editing in this video and how well you explain things particularly the graph part, some videos don't explain that well. Hope you make more videos because I am really having a hard time understanding math. I will definitely recommend this to my classmates. Thanks for this video!

[transittoronto_busfan]

This is the video I was looking for thank you so much other videos don’t explain alot

[paulromsky]

Great video, gave you a like. There is much more on Quadratics (like X and Y intercepts just to name a few) but this is a very good primer. One thing about parabolas is: No matter what the 3 coefficients are in a Quadratic equation (as long as coefficient a is non zero), the parabola may look wider/narrower/offset, but its overall shape is the always same. Example: Graph 2x^2+1x+1. Then graph 3x^2+5x+4. The second parabola may look thinner and offset from the first, but if you could zoom your graph on just the 2nd parabola and pan it about, you will see that they will overlap perfectly at some point. So, there really is only 1 parabola (shape wise) they are just different manifestations (zooms) of the same shape based on the coefficients. Per-kow! Did your mind just blow?

[bensonwu]

This is what I am currently learning. I had a hard time understanding it under my teacher's instruction, but I am able to understand it when reading the book that I am currently using, and also with this video.

[WhiteChocolate]

This channel is incredible! Thank you for the modern video lessons.

[Strikerx]

Wow you explained soo good thx I understand now