Select the graph of r = 4 cos 2θ

 Select the graph of  r = 4 sin 2θ

 Select the graph of r = 2 cos 7θ

Select the graph of r = 2 sin 5θ

Select the graph of r = 2 cos 3θ

Select the graph of r = 4 sin 7θ

Select the graph of r = 4 sin 9θ

 Select the graph of r = 2 cos 5θ

 Select the graph of r = 4 sin 3θ

 Select the graph of r = 4 cos 4θ