Write Eq of Line given Point & Parallel/Perpendicular Line

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What is the slope-intercept form of a line?

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How do you find the slope of a line given two points?

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What does it mean for two lines to be parallel?

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Two lines are parallel if they have the same slope, meaning their slopes are identical.

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What does it mean for two lines to be perpendicular?

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Two lines are perpendicular if the product of their slopes is -1, meaning they are opposite reciprocals.

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How do you write the equation of a line parallel to a given line?

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To write the equation of a line parallel to a given line, use the same slope as the given line and the point it passes through to find the y-intercept.

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How do you write the equation of a line perpendicular to a given line?

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To write the equation of a line perpendicular to a given line, use the negative reciprocal of the slope of the given line and the point it passes through to find the y-intercept.

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