The equation is .
Compare the polar equation with .
Here and
.
Substitute in
.
Since , the conic is hyperbola.
Directrix is perpendicular to the polar axis at a distance right to the pole.
The directrix is .
Construct a table for different values of .
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The vertices are and
.
The center of the hyperbola is mid point of the vertices is .
Graph:
\(1) Graph the polar co-ordinates.
\(2) Plot the points.
\(3) Connect the points to a smooth curve.
\The conic is hyperbola.
\The directrix is .
The vertices are and
.
The center is at .
.