The following software programs can perform linear regression and most other types of regression analysis. A line of best fit is usually found through simple linear regression. Find The Line Of Best Fit Using A Scatterplot Activity Line Of Best Fit Activities Equations Katie is 148 cm tall so we draw a straight line up from 148cm on the horizontal axis until it meets the line of best fit and then along until it meets the. How to find line of best fit . The straight line may pass through all the points or some of the points or none of the points. The line of best fit goes roughly through the middle of all the scatter points on a graph. In statistics the line of best fit also known as the trend line which represents the best of the given data points using the straight line on the scatter plot. A more accurate way of finding the line of best fit is the least square method. A line of best fit is a straight line that is the best approximation of the given set of data. Linear re