plot -max(x^2+y^2-36, 2.25-(x+2.5)^2-(y-2.5)^2,2.25-(x-2.5)^2-(y-2.5)^2,1-((y+3.5)/1.5-(x/4)^2)^2-(x/4)^2) for x=-6 to x=6

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.