Perpendicular Slopes.

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Presentation transcript:

Perpendicular Slopes

Perpendicular Slopes Perpendicular lines ALWAYS cross at a 90 angle. This means they meet like the ceiling and the wall. If two lines meet at a 90 angle, they are ALWAYS perpendicular. Perpendicular slopes are opposite signs and flipped. m = o 2 3 -3 2 Perpendicular line’s slope

Perpendicular Slopes

Perpendicular Slopes

Perpendicular Slopes

Are The Lines Perpendicular? y = ½x + 2 y = -2/1x + 3 y = ¾x – 2 y = -4/3x – 3 y = 4/3x – 3 y = 1/5x + 10 y = -5x + 10

Find the slope and tell me if the lines are perpendicular:

Assignment:

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