3.3 Slopes of Lines

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3.3 Slopes of Lines
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Slope ratio of vert rise to horiz run

• m slope -------- --------- ---------

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Example Find slope between (-3,2) (-1,2)
Method 1 Geom Way Method 2
Alg Way
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Quick Reference
Pos Slope Neg Slope 0 Slope
No Slope
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Post 3.2 2 non-vert lines have same slope iff
theyre Post 3.3 2 non-vert lines are
iff product of slopes is -1
m ½ m _____ m ½ m _____
m -3 m _____ m -3 m _____
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Assignment

• 3.3 worksheet