Coordinate Lines And Segments Worksheet Page 6
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14Parallel or Perpendicular Day
Objectives:
1. Student will be able to determine parallel, perpendicular, coinciding, or oblique from points, equations, or
graphs.
2. Students will be able to graph points and lines.
Warm – up:
Please graph the following:
1) A(3, -5) and B (-4, 0)
2) y = 2x – 5
Reminders about graphing:
Vocabulary:
Parallel: 2 coplanar lines that do not ever touch
Perpendicular: 2 coplanar lines that intersect at a right angle
Oblique: 2 coplanar lines that intersect, but not at a right angle
Coincide: 2 lines that overlap each other exactly
Notes and Examples:
•
If lines are parallel, then their slopes are ________________________________.
If lines are perpendicular, then their slopes are ___________________________________________.
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A ____________________ or ___________________ reciprocal is when you __________________ the signs
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and ______________________ the numerator and denominator. Their products will always be _________.
_____________ is when two lines cross, but are not perpendicular.
•
______________ is when the lines are the exact same line.
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