On Sun, 9 Jan 2005, in microsoft.public.excel.charting,
Throstle said:

I want to graph the linear equation y = 2x + 4 in microsoft excel. How do I
do this? On my TI-83 Plus I could easily do this. I also know I could create
a data table and use the table of values to chart the line in excel. But I
want just enter the equation in excel and have excel graph it. Thanks.

You need only two points to define a straight line. Create a
spreadsheet that takes the minimum and maximum values of x, and the
values of a and b, and calculates just two values of y, and you will
have forever more a spreadsheet that will give you a graph of y=ax+b
whenever you want.

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Del Cotter
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