(Enhanced) graphing polar curves
This is an enhanced version of the original worksheet on polar equations. The enhancement is, you can now watch how Geogebra plots the points corresponding to negative values of r. In each such case, you can see a red point corresponding to the actual value of the angle and the (positive) opposite of the negative , together with the blue point plotted at .
Also, you can see the partial curve corresponding to typical rational multiples of .