Hello all,

I am having some trouble with a homework assignment - I am trying to
make a graph that has two intersecting lines - the line which I have
successfully plotted, as well as a straight horizontal line with the
equation Y=0.12

If this is possible, could someone please clue me in as to how I might
be able to get it done?

The spreadsheet with ONE of the two lines is available he

http://qlink.queensu.ca/~3mf8/6.xls

Thanks,

Scott