$\"\"$ \ \

\

The equation of the parabola is $\"\"$ . \ \

\

Rewrite the equation $\"\"$ . \ \

\

$\"\"$ \ \

\

$\"\"$ \ \

\

$\"\"$ . \ \

\

The standard form of the equation of parabola with vertex $\"\"$ is $\"\"$ . \ \

\

Compare the equation with standard form. \ \

\

Here $\"\"$ and $\"\"$ and $\"\"$ . \ \

\

Vertex : $\"\"$ . \ \

\

Focus : $\"\"$ . \ \

\

Substitute $\"\"$ and $\"\"$ . \ \

\

$\"\"$ . \ \

\

Directrix : $\"\"$ . \ \

\

$\"\"$ \ \

\

$\"\"$ . \ \

\

The directrix is $\"\"$ . \ \

\

$\"\"$ \ \

\

Graph : \ \

\

Graph the parabola $\"\"$ . \ \

\

Plot the vertex $\"\"$ ,focus $\"\"$ and directrix $\"\"$ . $\"\"$ \ \

\

$\"\"$ \ \

\

Vertex $\"\"$ , focus $\"\"$ and directrix $\"\"$ . \ \

\

Graph : \ \

\

Graph of the parabola $\"\"$ is \ \

\

$\"\"$ .