$\"\"$

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The function is $\"\"$ .

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Rewrite the function.

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$\"\"$

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$\"\"$

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Domain of the function :

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All possible values of $\"\"$ is the domain of the function.

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The denominator of the function should not be a zero.

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So $\"\"$ .

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Domain is all values of $\"\"$ expect 0.

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The domain of $\"\"$ is $\"\"$ .

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$\"\"$

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Graph :

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Graph of the function $\"\"$ .

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If $\"\"$ , then $\"\"$

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$\"\"$ .

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If $\"\"$ , then $\"\"$

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$\"\"$ .

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In below graph, the circular dot indicates that the point excluded from the function $\"\"$ .

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$\"\"$

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$\"\"$

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The domain of $\"\"$ is $\"\"$ .

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Graph of the function $\"\"$ is

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$\"\"$