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Slope of Line
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Created by Meryl Weaver for EDCT 203 @ Ohio University, edited by Dee McGlothlin, TA

Created by Meryl Weaver for EDCT 203 @ Ohio University, edited by Dee McGlothlin, TA

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Transcript

  • 1.  
  • 2. What is Slope? Every line has a slope. Slope refers to the steepness of a line. Since the line on the right is steeper, it has a larger slope.
  • 3.
    • Slope can also be defined as:
    • rise (change in x)
    • run (change in y)
  • 4.
    • Slope can be positive
    • Slope can be negative
    • Slope can be zero
  • 5. How do you find slope?
    • Slope is represented by m .
    • To find slope, you need two points on the line.
      • Plug in the coordinates of the first point in for (x 1 ,y 1 ) and the second point as (x 2 ,y 2)
  • 6. Let’s Practice!
    • Find the slope of the line that passes through the points (1,2) and (-2,-4).
    y 2 – y 1 = -4 - -2 = -2 m = x 2 – x 1 = -2 - -1 = -1 = 2
  • 7. What is the slope of the given line?
    • A: -2
    • B: -1
    • C: -½
  • 8.  
  • 9.  
  • 10. What is the slope of the given line?
    • A: ½
    • B: -½
    • C: 2
    • D: -2
  • 11.  
  • 12.  
  • 13. What kind of slope does this line have?
    • A: Positive
    • B: Negative
    • C: Zero
  • 14.  
  • 15.  
  • 16. Find the slope of a line passing through the points (6,3) and (-2,3).
    • A: -1
    • B: 0
    • C: 3
  • 17.  
  • 18.  
  • 19. Graphically, what is slope?
    • A: The point the line crosses the y-axis
    • B: Run Rise
    • C: Change in y Change in x
  • 20. I am done! Start Over
  • 21.  
  • 22. Source
    • Stapel, Elizabeth. "Slope of a Straight Line." Purplemath. Available from
    • http://www.purplemath.com/modules/slope.htm. Accessed 15 April 2010