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Published byHubert Gilbert Modified over 8 years ago

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2.4 Lines

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Slope Find the slope of the line passing through the given points.

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Slope (+) Slope (-) Slope Zero Slope No Slope

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Graphing Linear Equations Graph a line given a point and the slope

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General Form X and Y must be on the same side A and B may not contain any fractions A must always be positive

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Point slope Find the equation of a line in general form given a point and a slope.

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Find the equation of a line in general form given two points. Point slope

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Slope – Intercept Find the slope and y-intercept of each equation and graph.

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2.5 Parallel and Perpendicular Lines

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Parallel Lines Two non-vertical lines are parallel if and only if their slopes are equal and they have different y-intercepts.

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Two non-vertical lines are perpendicular if and only if the product of their slopes is – 1. Perpendicular Lines

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Determine if the lines are parallel, perpendicular, or neither.

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