Your teacher will give you a piece of pasta and a straightedge.
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Here are two copies of the same scatter plot. Experiment with drawing lines to fit the data. Draw the line that you think best fits the data. Compare it with a partner’s.
A scatterplot of 20 data values. The horizontal axis has the numbers 0 through 12, in increments of 3, indicated. The vertical axis has the numbers 0 through 40, in increments of 10, indicated. The graph shows the trend of the 20 data points moving linearly downward and to the right. The approximate coordinates of the points are as follows: 1 comma 38. 1 point 5 comma 35. 2 point 3 comma 33. 2 point 5 comma 31 point 5. 3 point 2 comma 32. 4 comma 31. 4 point 4 comma 27. 4 point 5 comma 25. 5 point 8 comma 26. 6 comma 26. 6 comma 22. 6 point 3 comma 18. 7 point 5 comma 14. 7 point 6 comma 21. 8 point 5 comma 17. 9 comma 14. 9 point 3 comma 8. 9 point 5 comma 12. 10 point 4 comma 4. 10 point 5 comma 7.A scatterplot of 20 data values. The horizontal axis has the numbers 0 through 12, in increments of 3, indicated. The vertical axis has the numbers 0 through 40, in increments of 10, indicated. The graph shows the trend of the 20 data points moving linearly downward and to the right. The approximate coordinates of the points are as follows: 1 comma 38. 1 point 5 comma 35. 2 point 3 comma 33. 2 point 5 comma 31 point 5. 3 point 2 comma 32. 4 comma 31. 4 point 4 comma 27. 4 point 5 comma 25. 5 point 8 comma 26. 6 comma 26. 6 comma 22. 6 point 3 comma 18. 7 point 5 comma 14. 7 point 6 comma 21. 8 point 5 comma 17. 9 comma 14. 9 point 3 comma 8. 9 point 5 comma 12. 10 point 4 comma 4. 10 point 5 comma 7. -
Here are two copies of another scatter plot. Experiment with drawing lines to fit the data. Draw the line that you think best fits the data. Compare it with a partner’s.
A scatterplot of 20 data points. The horizontal axis has the numbers 0 through 12, in increments of 3, indicated. The vertical axis has the numbers 0 through 40, in increments of 10, indicated. The graph shows the trend of the 20 data points moving linearly upward and to the right. The approximate coordinates of the points are as follows: 1 point 5 comma 1. 2 comma 5. 3 comma 1. 3 comma 7. 3 comma 8. 4 comma 4. 4 point 4 comma 7.5. 4 point 6 comma 10. 5 comma 2. 5 point 5 comma 13. 6 point 2 comma 22. 7 point 4 comma 18. 7 point 5 comma 11. 7 point 5 comma 9. 8 point 8 comma 29. 8 point 9 comma 13. 9 point 1 comma 33. 9 point 7 comma 28. 10 comma 16. 10 comma 17.A scatterplot of 20 data points. The horizontal axis has the numbers 0 through 12, in increments of 3, indicated. The vertical axis has the numbers 0 through 40, in increments of 10, indicated. The graph shows the trend of the 20 data points moving linearly upward and to the right. The approximate coordinates of the points are as follows: 1 point 5 comma 1. 2 comma 5. 3 comma 1. 3 comma 7. 3 comma 8. 4 comma 4. 4 point 4 comma 7.5. 4 point 6 comma 10. 5 comma 2. 5 point 5 comma 13. 6 point 2 comma 22. 7 point 4 comma 18. 7 point 5 comma 11. 7 point 5 comma 9. 8 point 8 comma 29. 8 point 9 comma 13. 9 point 1 comma 33. 9 point 7 comma 28. 10 comma 16. 10 comma 17. - In your own words, describe what makes a line fit a data set well.