Graphing Exercise. In this exercise you are going to make as many dots as you can on your whiteboard in a chosen amount of time. You will then graph your.

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Presentation transcript:

Graphing Exercise

In this exercise you are going to make as many dots as you can on your whiteboard in a chosen amount of time. You will then graph your data. On your paper, make a data table for this data. Include units where it is appropriate.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 2 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 4 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 6 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 8 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 10 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 12 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 14 s I will tell you to stop. Record the number of dots in your data table.

When I give the signal, make as many dots on your whiteboard as you can. At the end of 16 s I will tell you to stop. Record the number of dots in your data table.

Now lets create our graph! Step 1 Identify the Independent and Dependent Variables for our experiment. IV : DV : The independent variable goes on the horizontal axis and the dependent variable goes on the vertical axis. ("time" can be an exception to this rule).

Step 2 Decide on an appropriate scale for each axes. Is the origin (0,0) a data point? Should it be? Count the number of blocks available for graphing. Determine the scale for each axis by dividing the range by the number of blocks. Round up to the nearest reasonable interval. Also decide on the orientation of your graph. Go to the graph and label the axes and the scale!!!

Step 3 Write a title at the top of your graph,. This is usually DV VS. IV Step 4 Plot your data points on your graph. Step 5 Draw a line or curve of best fit. Step 6 If your curve is a line, pick two points off the line and determine the slope using the formula slope = Y2 -Y1 X2 - X1

Summary of Graphing Rules 1) All graphs must include a title. Use Dependent Variable VS. Independent Variable. 2) Select an appropriate scale so that the points will be plotted on more than 1/2 of the paper. The closer to the complete page the better. 3) Label each axis with the name and units of the quantity you are plotting. The independent variable goes on the horizontal axis and the dependent variable goes on the vertical axis. 4) Mark off each axis with equally spaced numbers going from smallest to largest. 5) Draw a curve or line of best fit for your data. DO NOT CONNECT THE DOTS!!!!!!!!!!!