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Maths Standard

The Line of Best Fit and the Equation of Least Squares

What is the line of best fit?

line of best fit is a straight line that approximates the relationship between points. There are two methods, one involves drawing by eye and approximating, the other involves using an equation of least squares. The following videos will explain the line of best fit and equation of least squares in HSC Standard Math.

The line of best fit

The following videos explain how to write an equation for the line of best fit.

 

 

The equations of least squares line of best fit formula

The following videos explain how to use your calculator to identify the equation of least squares line of best fit.