$\"\"$

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The equation is $\"\"$ and one of the point is $\"\"$ .

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Consier the point $\"\"$ and another point is $\"\"$ .

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The line equation is $\"\"$ .

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$\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in the equation $\"\"$ .at the point $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in the function $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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

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$\"\"$

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The slope is $\"\"$ .

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The Point $\"\"$ and $\"\"$ .

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The equation is $\"\"$

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$\"\"$

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

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$\"\"$

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The slope is $\"\"$ .

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The Point $\"\"$ and $\"\"$ .

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The equation is $\"\"$

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$\"\"$

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. $\"\"$

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The Line equations are $\"\"$ and $\"\"$ .

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