Shifted Conics: Parabolas

in #mathematics8 years ago (edited)

In this video I go over further into shifted conics and this time shift Parabolas. The procedure for shifting parabolas is the same as that for ellipses, which I covered in my earlier video. This is done by simply replacing x and y with (x – h) and (y – k). This means that in order to obtain the basic x and y values, we need to add h to the horizontal component and k to the vertical component. Thus we effectively shift the function horizontally and vertically. For the parabola y = ax2, with the vertex at the origin, this can be shifted so that the vertex is (h, k) by re-writing the formula (y – k) = a(x – h)2 or y = a(x – h)2 + k. Although this is very similar to the case for an ellipse, it is nonetheless important to understand this concept through applying it to different functions, such as in this case a parabola, so make sure to watch this video!


Watch video on:

Download PDF Notes: https://1drv.ms/b/s!As32ynv0LoaIh5Vqjg-jPzl6_SRXlw


View Video Notes Below!


Download these notes: Link is in video description.
View these notes as an article: https://peakd.com/@mes
Subscribe via email: http://mes.fm/subscribe
Donate! :) https://mes.fm/donate
Buy MES merchandise! https://mes.fm/store
More links: https://linktr.ee/matheasy
Follow my research in real-time on my MES Links Telegram: https://t.me/meslinks
Subscribe to MES Truth: https://mes.fm/truth

Reuse of my videos:

  • Feel free to make use of / re-upload / monetize my videos as long as you provide a link to the original video.

Fight back against censorship:

  • Bookmark sites/channels/accounts and check periodically
  • Remember to always archive website pages in case they get deleted/changed.

Recommended Books:

Join my forums!

Follow along my epic video series:


NOTE #1: If you don't have time to watch this whole video:

Browser extension recommendations:


Shifted Conics: Parabolas

Shifted Conics Parabolas AI.jpg

Recall from my earlier video on Shifted Conics: Ellipses (and Circles) in which we can shift an ellipse by replacing x with (x - h) and y with (y - k).

This is in fact the same procedure for shifting a parabola.

We can shift the parabola y = ax2 so that its vertex (the origin) becomes the point (h , k) as shown below:

Notice that in shifting the parabola, we just replaced x by x - h and y by y - k.

In other words, to obtain the new values (x , y) of the parabola we need to add h to every x value and add k to every y value.

If h = k = 0, then there is no shift and the vertex of the parabola is still the origin!

Sort:  

This one is easy. The 'Trigonometry Identity' one is much harder! Its's nice that your series is back. lol

haha yup. I follow a fairly ordered upload strategy but sometimes random topics I cover take a while. Will be trying to stay focused!

You Have A Good Talent...
in Mathematics and science