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.
(x + 6)^2 + (y + 4)^2 = 15^2, sqrt (x^2 + 4^2) = 15 - sqrt (y^2 + 6^2)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random