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Graphing Linear Equations
by Suzanne Alejandre
As I am learning to use the ImagiGraph program on my Zire 71 palmOne handheld, I started thinking that it might be fun to write directions similar to the ClarisWorks directions I wrote for my students several years ago called Graphing Linear Functions. These won't be useful, in my opinion, until they're classroom tested, so please consider them as a draft at this point!
The following steps can be used with students to have them create, investigate, and learn about graphs of linear equations.
[getting ready] ||
[define an equation] ||
[view graph]
[change slope and y-intercept] ||
[view data table]
Getting Ready
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Step One
Locate the ImagiGraph icon. Tap it.
Note: If you don't have a copy of ImagiGraph on your handheld, you can download the ImagiMath Demo from the ImagiWorks site.
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Step Two
Using your stylus, tap the menu in the upper right corner of the screen and select New.
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Step Three
A window appears, Name Workspace.
To type a name, tap ABC (the red arrow is indicating the position of the ABC).
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Step Four
A keyboard appears.
Use the stylus to tap on the keyboard.
Once you have named the new workspace (example: linear equations), tap Done and then on the next screen, tap OK.
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Step Five
You are in your ImagiGraph Workspace titled linear equations.
You have a screen with two "No Equation Selected" lines and a grid displaying the x and y axes.
Use your stylus to
zoom in - 
zoom out - 
move around - drag the stylus on the screen
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Now that you are familiar with how you can adjust
the display of the grid, let's define an equation.
Go to: define an equation
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