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Graphing

Graphing. Graphing. Draw axes with a straight-edge , leaving 3-4 boxes at the left, bottom, and top. Graphing. 2. Label the “X” axis as the independent variable (whatever YOU manipulated). Graphing.

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Graphing

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  1. Graphing

  2. Graphing • Draw axes with a straight-edge, leaving 3-4 boxes at the left, bottom, and top.

  3. Graphing • 2. Label the “X” axis as the independent variable (whatever YOU manipulated).

  4. Graphing 3. Label the “Y” axis as the dependent variable (whatever you WATCHED to see if there was a change).

  5. Graphing • 4. Add (UNITS) to the axes labels. • 5. Add a title: Y vs. X

  6. Graphing • Determine the SCALE for an axis:

  7. Graphing • a. Find the range for an axis. (i.e. Top value - Zero OR Top value – Lowest value )

  8. Graphing • b. Count the boxes on that axis. • c. Divide the range by the number of boxes.

  9. Graphing • d. Round UP the quotient to the next “appropriate” value. (i.e. 1, 2, 2.5, 5, or any power of ten times any of the above values.)

  10. Graphing • d. For example: • 0.9 would become… 1

  11. Graphing • d. For example: • 1.3 would become… 2

  12. Graphing • d. For example: • 2.1 would become… 2.5

  13. Graphing • d. For example: • 3.0 would become… 5

  14. Graphing • d. For example: • 6.1 would become… 10

  15. Graphing • d. For example: • 13 would become… 20

  16. Graphing • d. For example: • 22 would become… etc. 25

  17. Graphing • 7. Number the axis using increments of the value you found in step 6. (NOT raw data!!!) • **NO FLOATERS!!!**

  18. Graphing • 8. Repeat steps 6 & 7 for the other axis. • 9. Plot the data CAREFULLY!

  19. Graphing 10. Circle the data points. 11. Draw a best-fit line/curve. (Do NOT connect the dots!)

  20. Graphing • Select and BOX two points that are NOT data points, but are on the BF line (or a tangent).

  21. Graphing 13. Draw vertical and horizontal lines to form a right triangle with the boxed points at the upper and leftmost points.

  22. Graphing 14. On the triangle, show the Dy and the Dx. 15. On the graph, write the formula m = Dy/ Dx.

  23. Graphing 16. Fill in the formula with numbers and units. 17. Solve for the final answer with proper units.

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