Equations For Calculating Trendlines. Calculates the least squares fit through points by using the following equation. Equations for calculating trendlines Linear.
Calculate the y-intercept b of your trend line by using the average of the slope from Step 2 and the. Calculate the slope m of your trend line by dividing the total for Column 3 by the total for Column 4. F 175 x.
Where b and are constants.
Calculates the least squares fit through points by using the following equation. So you can find the slope and intercept by including the Dates as the x-values and the Values as the y-values in functions SLOPE and INTERCEPT like this. Let a equal n times. Pick any point on the line and solve for offset.