Writing Parallel and Perpendicular Equations of Lines.

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Front

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Front

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Front

What is the general form of the equation of a line?

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Front

What does it mean for two lines to be parallel?

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Two lines are parallel if they have the same slope and never intersect.

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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.

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If a line has a slope of 3, what is the slope of a line parallel to it?

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The slope of a line parallel to it is also 3.

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If a line has a slope of 3, what is the slope of a line perpendicular to it?

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What is the slope-intercept form of a line?

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