The parabola equation is
.
Since the
term is squared, the parabola is horizontal.
Standard form of horizontal parabola is
.
where
,
is vertex, focus at
and directrix is
.
Consider
. \ \

.
Compare with
.
Vertex
. \ \
.
Since
, the parabola opens to the left.
Focus
.
Focus
.
Directrix
Directrix
.
Axis of symmetry
.
Draw the coordinate plane.
\Plot the vertex, focus of parabola.
\Draw the axis of symmetry and directrix.
\Connect the plotted points with smooth curve.
\
Vertex :
.
Focus
.
Directrix
.
Graph of
:
\
\
\
\