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Section 4.4 Slope

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Transcript

  • 1. Warm - Up
    • Identify the x – coordinate and y – coordinate of each ordered pair.
    • (-3,4) (0,-7)
    • (5,0) (-9,-2)
  • 2. Section 4.4 The Slope of a Line
    • Definitions:
      • Slope – of a non-vertical line is the number of units the line rises or falls for each unit of horizontal change from left to right.
      • Rate of Change – slope is an important way of visualizing a rate of change
  • 3. Classifications of line by slope
  • 4. Example One
    • Find the slope of the line passing through (-2,2) and (3,4).
  • 5. Example Two
    • Find the slope of the line passing through (-1,2) and (3,2).
  • 6. Example Three
    • Find the slope of the line passing through (0,0) and (3,-3).
  • 7. Example Four
    • Find the slope of the line passing through (2,4) and (2,1).
  • 8. Example Five
    • Find the value of y so that the line passing through the points (-2,1) and (4,y) has a slope of 2/3.
  • 9. Example Six
    • Find the value of y so that the line passing through the points (3,y) and (5,8) has a slope of 2.