Tangent line in Excel 2007

[scope951]

I know that in Excel 2003 and earlier you can move a point on the chart, making it easy to move a line to where ever you want and get the slope from that. In 2007 they removed this feature, and I can not find another method at all. Any is appreciated, thanks.

[Andy Pope]

There is a MS addin to restore goal seek in a chart.
http://blogs.msdn.com/b/excel/archiv...arts-mpoc.aspx

[scope951]

Thank you, that does work for now. 2003 works much better unfortunately.