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The function $\"\"$ .

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(a)

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Find $\"\"$ .

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Observe the graph, $\"\"$ .

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Estimate $\"\"$ algebraically.

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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(b)

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Find $\"\"$ .

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Observe the graph, $\"\"$ .

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Estimate $\"\"$ algebraically.

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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(c)

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Find $\"\"$ .

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Observe the graph, $\"\"$ is not defined.

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Estimate $\"\"$ algebraically.

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ = Undefined.

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(a). $\"\"$ .

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(b). $\"\"$ .

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(c). $\"\"$ = Undefined.