$\"\"$

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The function is $\"\"$ and parallel line equation is $\"\"$ .

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Definition of slope of the tangent line : $\"\"$ .

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$\"\"$

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

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Parallel line equation is $\"\"$ .

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Find the slope of the parallel line $\"\"$ .

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

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$\"\"$

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

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$\"\"$

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The line is parallel to the tangent line then their slopes are equal.

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Equate the slope of the tangent line to $\"\"$ .

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$\"\"$

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

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$\"\"$

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The point on the curve is $\"\"$ .

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Find the equation of the tangent line.

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Point-slope of line equation : $\"\"$ .

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Substitute $\"\"$ and point $\"\"$ in the point slope form.

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$\"\"$

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$\"\"$

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Equation of tangent line is $\"\"$ .

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$\"\"$

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Equation of tangent line is $\"\"$ .