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5 1a Find slope w/ x- & y-intercepts

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5 1a Find slope w/ x- & y-intercepts

  1. 1. Finding Slope on a Graph 11/12/07 PH 5-1a 1
  2. 2. •Slope tells us the direction and steepness of the graph of a line. regentsprep.org/Regents/ math/glines/Llines.htm 11/12/07 PH 5-1a 2
  3. 3. •Determine if the slope is +, -, 0, or undefined + - regentsprep.org/Regents/ math/glines/Llines.htm 11/12/07 PH 5-1a 3
  4. 4. •Determine if the slope is +, -, 0, or undefined 0 undefined regentsprep.org/Regents/ math/glines/Llines.htm 11/12/07 PH 5-1a 4
  5. 5. •If slope is positive or negative, identify 2 good points on the line. http://www.harcourtschool.com/glossary/math_advantage/definitions/linear_e8.html 11/12/07 PH 5-1a 5
  6. 6. •From the lower point count up and then count over. •Put in ratio }Ratio •Count up # •Count over # 11/12/07 PH 5-1a 6
  7. 7. •Leave answer in ratio, but reduce to lowest terms. http://www.harcourtschool.com/glossary/math_advantage/definitions/linear_e8.html 11/12/07 PH 5-1a 7
  8. 8. •Name intercepts: •X-intercept is where the line crosses the x axis. (x-int) •Y-intercept is where the line crosses the y axis. (y-int) •The intercepts are only half a point. 11/12/07 PH 5-1a 8
  9. 9. •Find slope and name intercepts: 11/12/07 PH 5-1a 9
  10. 10. •Find slope and name intercepts: 11/12/07 PH 5-1a 10
  11. 11. •Find slope and name intercepts: 11/12/07 PH 5-1a 11
  12. 12. •Find slope and name intercepts: 11/12/07 PH 5-1a 12
  13. 13. •Find slope and name intercepts: 11/12/07 PH 5-1a 13
  14. 14. •Find slope and name intercepts: 11/12/07 PH 5-1a 14
  15. 15. •Review: •Explain how you find slope from a graph. •What is the x- intercept? •What is the y- intercept? 11/12/07 PH 5-1a 15

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