Using Properties of Parallel Lines/

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Author:
LaurenCamp29
ID:
179950
Filename:
Using Properties of Parallel Lines/
Updated:
2012-10-25 19:00:00
Tags:
using properties parallel lines soph math geometry
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  1. When do we need to put converse at the end?
    When they're asking why the lines are parallel
  2. The two theorems that have no names
    If two lines are parallel to the same line, then they are parallel to each other

    If two lines are perpendicular to the same line then they are perpendicular to each other
  3. When all right anles are congruent to each other
    Right Angle Theorem
  4. They always have the same slope
    Parallel Lines
  5. Has a slope of zero
    Horizontal Lines
  6. Have an Undefined Slope
    Vertical Lines
  7. Lines goes up to the left
    Negative Slope
  8. Line goes up to the right
    Positive Slope
  9. measures how steep the line is
    Slope
  10. Formula for Slope?
    y2-y1

    x2-x1
  11. When is it an undefined slope?
    When the zero is the numerator
  12. In a coordinate plane, 2 non-vertical lines are perpendicular if and only if the product of their slopes is -1.
    (when the slopes are opposite reciprocals)
    Slopes of Perpendicular Postulate
  13. What lines are perpendicular?
    Horizontal and Vertical Lines

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