$\"\"$

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The curve equation is $\"\"$ and $\"\"$ .

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The tangent line passing through the point $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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The two equations satisfies $\"\"$ .

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Therefore, $\"\"$ is not considered.

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Find the slope of the tangent line.

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$\"\"$

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Apply derivative on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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Apply derivative on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$ .

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Slope of the tangent line is $\"\"$ .

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$\"\"$ .

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

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$\"\"$ .

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The slope of the tangent line is $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$ .

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$\"\"$

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The standard form of line equation is $\"\"$ .

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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The tangent line equation is $\"\"$ .

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$\"\"$

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The tangent line equation is $\"\"$ .