Calculating error in gradient of a graph

[yardy_genius]

Hello , i would like to know how do you calculate the error in the gradient of a graph when all the points fall on the line or is so close to the line to draw the maximum and minimum slope and using it in the general formula is not applicable.

error in gradient = ±(max.slope- min slope) /2√N

thanks guys.

 

[Spinnor]

This is close,

https://www.physicsforums.com/showthread.php?t=173827

Post 3 might be closest to what you need. Do you have error bars for your data points?