1. 3.5 Slopes of Lines 10.20.09
Homework Questions:
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2. 3.5 Slopes of Lines 10.20.09
3.5 Slopes of Lines
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3. 3.5 Slopes of Lines 10.20.09
Slope of a Line:
Quick Check: Find the value of m.
1.) m= 2.)m=
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4. 3.5 Slopes of Lines 10.20.09
Use the slope formula to determine the slope of each line.
3.) EF 4.)GH
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5. 3.5 Slopes of Lines 10.20.09
Slope of a Line
Positive Slope Undefined Slope
Negative Zero
Slope Slope
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6. 3.5 Slopes of Lines 10.20.09
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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7. 3.5 Slopes of Lines 10.20.09
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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8. 3.5 Slopes of Lines 10.20.09
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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9. 3.5 Slopes of Lines 10.20.09
*NaMmMe ThAaAtT sLoOoPpE*
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