Tangent, Slope, Best Fit?

[CredendoVides]

Hi, is it at all possible to determine the slope of a line after graphing it in Excel?

Is it possible to draw a second line tangent to another line?

And is it possible to draw best fit lines or curves? I've had to kind of fake it by drawing them myself, so I know they aren't very accurate, so it would be better if Excel can draw them itself.

 

[Mark W.]

>Hi, is it at all possible to determine the slope of a line after graphing it in Excel?

See the LINEST worksheet function.

>Is it possible to draw a second line tangent to another line?

Wouldn't that just be the original line?

> And is it possible to draw best fit lines or curves? I've had to kind of fake it by drawing them myself, so I know they aren't very accurate, so it would be better if Excel can draw them itself.

See the Add Trendline feature of Excel charts.