$\"\"$

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Standard Quadratic function is $\"\"$ .

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The vertex is $\"\"$ .

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The vertex of standard form is $\"\"$ .

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Substitute $\"\"$ , hence $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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Since $\"\"$ .

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$\"\"$

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$\"\"$

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Find the value of $\"\"$ .

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The parabola passes through point $\"\"$

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Substitute for $\"\"$ , $\"\"$ in $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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substitute $\"\"$ in the equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ , Since $\"\"$ .

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Since $\"\"$ .

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Therfore $\"\"$ and $\"\"$ and $\"\"$ . $\"\"$

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