In your notes:

• Write your personal definition of parallel lines.
  
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  Parallel Lines

  Characteristics

  • Same slope
    • On graph
    • In equations
  • Never intersect
  • Linear

  Examples

  y = 2x - 4

  y = 2x + 8

  Non-Examples

  y = 3x - 4

  y = 2x + 8

  My Definition

  Lines that have the same slope and never intersect.

  
  
• Write your personal definition of perpendicular lines.
  
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  Perpendicular Lines

  Characteristics

  • Negative reciprocal slopes
    • On graph
    • In equations

  Examples

  y = 5x - 3

  y = -(1/5)x + 7

  Non-Examples

  y = 5x - 4

  y = (1/5)x + 7

  My Definition

  Lines that intersect at right angles.