Regression Line Equation. Y 173 51 4 83x y 173 51 4 83 x remember it is always important to plot a scatter diagram first. A linear regression line equation is written in the form of.
So we have the equation for our line. It is the value of y obtained using the regression line. Y 173 51 4 83x y 173 51 4 83 x remember it is always important to plot a scatter diagram first.
So our y intercept is literally just 2 minus 1.
The y intercept is the place where the regression line y mx b crosses the y axis where x 0 and is denoted by b. This equation itself is the same one used to find a line in algebra. The least squares regression line best fit line for the third exam final exam example has the equation. The slope of the line is b and a is the intercept the value of y when x 0.
