Every practice I have seen for line of best fit asks students to create the scatter plot and then find the line of best fit. However, this takes significantly longer. I created these scatter plots to give students a chance to focus specifically on creating a line of best fit and finding the slope-intercept equation of the line.
I have attached the PDF and Word version (for editing), as well as an answer key. Please keep in mind that answer may differ depending on which points are chosen to calculate the line of best fit.