1. Using the applet below, rotate the plane 180 degrees, about the origin. Let this rotation be Rotation0. What are the coordinates of Rotation0(2,-4)?
3. Let Rotation0 be the rotation of 180 degrees around the origin. Let L be the line passing through (-6,6) parallel to the x-axis. Find Rotation0(L). Use the applet below if needed.
4. Let Rotation0 be the rotation of 180 degrees around the origin. Let L be the line passing through (7,0) parallel to the x-axis. Find Rotation0(L). Use the applet below if needed.