$\"\"$

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The $\"\"$ intercepts of the parabola are $\"\"$ and $\"\"$ .

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Tthe range is $\"\"$ .

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The parabola function is $\"\"$

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$\"\"$

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The vertix form of the parabola is $\"\"$ .

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To change the expression $\"\"$ into a perfect square trinomial add and subtract $\"\"$ .

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$\"\"$

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$\"\"$

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Comapre the equation with $\"\"$ . $\"\"$

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Therefore, $\"\"$ and $\"\"$

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The range of the parabola is $\"\"$ , i.e $\"\"$ .

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To get the value of $\"\"$ ,multiply the equation with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ , $\"\"$ and $\"\"$ and $\"\"$ in the equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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

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$\"\"$

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