The rectangular equation is $\"\"$ .

Conversion from rectangle to polar :

Substitute the values $\"\"$ in $\"\"$ .

$\"\"$

The polar equation is $\"\"$ .

The polar equation is $\"\"$ .

Construct a table for different values of $\"\"$ .

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Graph :

(1) Draw the polar co-ordinate plane.

(2) Plot the polar points.

(3) Connect the points to a smooth curve.

$\"\"$

The polar equation is $\"\"$ .

The graph of the polar equation $\"\"$ is :

$\"\"$