Linear Grapher Microsoft Excel Spreadsheet that allows you to graph up to 3 lines at a time. The lines are color coded with the equations, so you will know which line corresponds to which equation.
It also displays 10 points for each equation. The x values for these points can be adjusted.
It also finds the points of intersection for every pair of lines. This is helpful for system of equations.
It also has a seperate application built into the spreadsheet for finding the equation of a line given two points or given one point and the slope.
I made this as user friendly as possible. The fields highlighted green are fields for input. All other fields should be left alone (I think they are even password protected).
I also managed to do a pretty good job of setting up the spreadsheet for printing.
I think this would be ideal for classrooms that do not have a set of TI calculators but have a computer display of some sort, for computer labs that have MS Excel, or for individual student exploration (at home or for home school).
I hope you and your students find it helpful.
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