The polar equation is
.
The general form of polar equation is
.
Compare the polar equation with general form .
\Here
and
.
Since
, the polar equation is parabola.
Graph:
\Graph the polar function
.

Observe the graph:
\The graph of the polar function is parabola.
\The polar equation is parabola.
\Graph:
\Graph of the polar function
is
\ \