Picture orientation directions

After you've inserted your image in geogebra,

1.  Right click on it.  This should open a box.  Click on "Object Properties".
2.  Click on the Position tab.
3.  Set Corner 1 to Corner[1].  Set Corner 2 to Corner[2].  Set Corner 4 to Corner[4].
4.  Click on the Style tab to adjust the transparency of your picture.  I'd keep it somewhere between 50 and 75 so that you can see both your picture and your axes.

Have fun!!!