What is the equation for the line of best fit?

Cthe residual plot for model 1 has a non random pattern and is a good fit for the data

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south

15 cm is the answer to your question