The graphing calculator program which comes with every Power Macintosh computer is a very powerful tool for doing algebra. This activity will help you to learn how to use this program to graph inequalities.
When you start the graphing calculator, you should see a window similar to this:
You type expressions and equations in the top part of the window. Graphs appear in the bottom part of the window. The buttons on the lower left allow you to zoom in and out. You can move the graph by dragging the axes with your mouse.
Graph the following inequalities and copy the graphs onto a piece of graph paper:
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Look at the graphs of these inequalities and the relationship between them. How is the graph of a system of inequalities is related to the graph of each inequality in the system?
Graph the following systems of inequalities and copy the graphs onto a piece of graph paper:
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Create your own system of equations which forms an octagon (stop sign shape) when graphed:
Graph the following system of inequalities and set n to run from -2 to 2 with 20 steps:
Create your own animated system of inequalities. Make it as interesting as you can!
