Find the equation of a line on Excel – By KulfiSoftware
Excel has four ways to find the equation of a line on excel: LINEST (or LONGEST) function, trendline on a chart, regression analysis in the Data…Analysis ToolPak, and Solver. Each of these methods uses the least squares method to find the coefficients of the equation.
I suggest looking at the R-squared statistic when you do this to make sure the equation is explaining most of the variation ...
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