$\"\"$

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The line equation in slope-intercept form is $\"\"$ , where $\"\"$ is the slope and $\"\"$ is the $\"\"$ -intercept.

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Observe the graph, the line L is passes through $\"\"$ and perpendicular to $\"\"$ .

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The line equation $\"\"$ .

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Compare the line with slope-intercept form.

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Slope $\"\"$ .

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Perpendicular lines slopes are negative reciprocal to each other.

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

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$\"\"$

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Point-Slope form of the line equation is $\"\"$ .

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Substitute the values $\"\"$ , $\"\"$ and $\"\"$ in Point-Slope form.

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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 line equation L is $\"\"$ .