The line of best fit is defined to be that line with the property that the sum of the squares of the vertical distances of the y coordinates of the data points from the line is a minimum.
When the data do seem to follow a basic linear pattern we try to "fit a line" to the data. We want to draw the line so that it follows the same upward or downward trend as the data points. The line need not pass through any of the data points exactly, but it should roughly balance out the points that lie above the line with the points that lie below it. A line whose purpose is to model the data in this way is referred to as a line of best fit.
|How to Find and Draw The Line of Best Fit||Line of Sight Calculation||Parallel Lines and Perpendicular Lines||Perpendicular Lines and Intersecting Lines|
|A Horizontal Line||A Line of Symmetry|
|Chi Square Goodness of Fit Calculator||Line Calculator||Equation of Tangent Line Calculator||Find Perpendicular Line Calculator|
|Find Slope of a Line Calculator||Calculate Statistics|