BEST FIT LINE VIDEOS
The two videos below are good examples of how to find and show the uncertainty of a best fit line. The person who created the videos shows his math for how to calculate the slope differently than I have in class, but the concepts are the same.
Graphing Best Fit Lines and Max and Min Gradients
Finding Uncertainty of a Best Fit Line
BEST FIT LINE READING
The reading below draws boxes because they have large x and y uncertainties. However, we usually only need to talk about one of the two uncertainties. When you see the boxes, just imagine going from the top/bottom of the error bars, like we have done in class.