This is the fourth tutorial of the Microsoft Mathematics Tutorial Series.

In this tutorial, we learn how to plot 2 and 3 dimensional Cartesian graphs and 2 dimensional polar graphs. We also learn how to modify the settings of the Graphing window such as plotting range and proportional display.

1. Open Microsoft Mathematics.

2. Select the *Graphing* tab.

2. Under *Equations and Functions*, be sure that *2D* and *Cartesian* are selected.

3. Type and . Use the ^ symbol for exponent.

4. After the equations have been entered, click the **Graph** button.

Once the graph is displayed, you may use buttons on the toolbar to do the following:

- Show/hide the
*Axes*,*Outer Frames*, and*Gridlines*of the graph - Modify the
*Plotting Range*(minimum and maximum x-y axes values) - Enable/Disable
*Proportional Display*to set the x-y ratio to 1:1 - Zoom in/Zoom out if the
*Proportional Display*is enabled - Use the roller of your mouse to zoom in or zoom out (even if Proportional Display is disabled
*Restore Graph*to reset to the default setting*Reset Graphing Tab*to clear the graphing window*Save Graph as Picture*

**Plotting Polar Graphs**

Clear the Graphing window by clicking the *Reset Graphing Tab *button on the toolbar. Under *Equations and Functions*, select 2D Polar and graph . by typing 4 + cos(theta) in the *r* text box.

**Plotting 3D Graphs**

Clear the Graphing window by clicking the *Reset Graphing Tab *button on the toolbar. Under *Equations and Functions*, select 3D Cartesian and graph . by typing z = x sin(x) + y sin(y) – 3 in the first text box.

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I would like to see a tutorial on adjusting the plotting range when graphing a system of equations in three variables. This should also include plotting the point of intersection so that it is visible on the graph.