The equation of the parabola is .
The general form of the parabola is : , where vertix is
,focus is
and directrix is
.
Compare the equation with general form.
\Here vertex is and
.
The value of .
Substitute in
.
The focus is
The directrix of the the line .
Consider latus rectum .
Substitute in
.
and
and
.
The points are and
.
Graph :
\(1).Draw the coordinate plane.
\(2).Graph the parabola equation .
(3).Plot the vertex, focus, and the two points and
.
(4).Draw the directrix line.
\(5).Connect the plotted points with smooth curve.
\The parabola equation is .
The vertix is .
The focus is .
The directrix is .