$\"\"$

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

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Rewrite the equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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

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Compare the equation with standard form.

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

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Vertex : $\"\"$ .

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Focus : $\"\"$ .

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

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$\"\"$ .

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Directrix : $\"\"$ .

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$\"\"$

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$\"\"$ .

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

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Graph :

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Graph the parabola $\"\"$ .

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

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$\"\"$

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$\"\"$

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

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Graph :

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Graph the parabola $\"\"$ .

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$\"\"$ .