\"\"

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The equation is \"\".

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Graph the related function \"\"\"\"

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a

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f (a)

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    \"\"2

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   \"\"16

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\"\"1

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\"\"5

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0

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  4

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1

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11

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2

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16

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\"\"

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Graph:

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\"\"

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\"\"

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The a-intercepts are  between \"\" and \"\".

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So,the root is between  \"\" and \"\".