Step 1: \ \

The graph of polar equation of the form $\"\"$ or $\"\"$ is a conic , \ \

where $\"image\"$ is the eccentricity and $\"image\"$ is the distance between the focus(pole) and the directrix. \ \

Eccentricity $\"\"$ and directrix $\"\"$ . \ \

Since the graph has a horizontal directrix. so the equation is $\"\"$ . \ \

$\"\"$ is the distance between pole and directrix. \ \

Horizontal directrix above the pole is $\"\"$ . \ \

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

$\"\"$ \ \

Solution: \ \

Polar equation is $\"\"$ . \ \

\ \