I was just giving a demo of http://www.geogebra.org , a fantastic piece of geometry and algebra graphing software which is FREE. I'll attach a few examples here.

Question

I was just giving a demo of http://www.geogebra.org , a fantastic piece of geometry and algebra graphing software which is FREE.  I'll attach a few examples here.

mathteacher1729 · Answer

Here is some graphing and some geometry. Enjoy!

mathteacher1729 · Answer

Here is the page to download geogebra: http://www.geogebra.org/cms/en/installers

anonymous · Answer

can we see the attachments before we download the program?

mathteacher1729 · Answer

Hi rsvitale, no prob. :) 

In the geogebra (.ggb) files you can click, drag, and zoom everything and see it change instantly. :)

anonymous · Answer

cool! I'll download this