Visit http://ilectureonline.com for more math and science lectures!

To donate:
http://www.ilectureonline.com/donate
https://www.patreon.com/user?u=3236071

We will learn the subtle difference between graphing x^2+y^2=2^2 and y=SQRT(2^2-x^2).

Next video in this series can be seen at:
https://youtu.be/rVlamz9Q5xg