3.5 Notes A
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3.5 Slopes of Lines 1 10.20.09 Homework Questions:
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Transcript of 3.5 Notes A
3.5 Slopes of Lines
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Homework Questions:
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3.5 Slopes of Lines
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Slope of a Line:
Quick Check: Find the value of m.
1.) m= 2.)m=
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Use the slope formula to determine the slope of each line.
3.) EF 4.)GH
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Slope of a Line
Positive Slope Negative Slope
Zero Slope
Undefined Slope
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Slopes of Parallel and Perpendicular Lines:
• In a coordinate plane, two nonvertical lines are parallel if and only if they have the _________ slope. Any two vertical lines are ___________.
• In a coordinate plane, two nonvertical lines are perpendicular if and only if the product of their slopes is ______. Vertical and horizontal lines are ___________.
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Determining whether lines are Parallel, Perpendicular or Neither...
Graph each pair of lines. Use their slopes to determine whether they are parallel, perpendicular, or neither.
5.) UV and XY for U (0,2), V (-1,-1), X (3,1), and Y (-3,3)
6.) CD and EF for C (-1,-3), D(1,1), E (-1, 1), and F (0,3).
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Homework:
*Pg. 186 # 11-23 odd, 26-33 all (As is on Assignment Sheet)
*Writing Assignment # 2 (Due Monday, 10/26)
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*NaMmMe ThAaAtT sLoOoPpE*
