Example Find the equation of the line that goes through the points (−1, 3) and (3, 11). Sketch the two points and join them with a straight line.

Calculating a Least Squares Regression Line: Equation, Example, Explanation If you want a simple explanation of how to calculate and draw a line of best fit through your data, read on!

The line of best fit is an output of regression analysis that represents the relationship between two or more variables in a dataset.

Example Find the equation of the line that goes through the points (−1, 3) and (3, 11). Sketch the two points and join them with a straight line.