If you know the functions why plot to find intersection?
y=mx+b
Y=MX+B
At intersection y=Y and x=X
so: mx+b=Mx+B;
therefore x=(B-b)/(m-M) and y=m(B-b)/(m-M)+b
best wishes
--
Bernard V Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
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"GraphLady" wrote in message
...
Can Excel do linear programming problems? I'm wondering if Excel can graph
from an equation rather than data points and can it identify points of
intersection?