Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
[y=-x,(x-1)^2=2-(y--1)^2,x^2=2-(y--2)^2,(x-2)^2=2-y^2]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random