A line of best fit is usually drawn on a scatter diagram. It's drawn so that the points are evenly distributed on either side of the line. There are various methods for drawing this 'precisely' but ...

Now use the information you already have about finding the equation of a line and apply it to the dashed lines shown in these triangles. Remember, to find the equation of a line you need a point ...

Mathematics of Computation, Vol. 83, No. 286 (MARCH 2014), pp. 771-788 (18 pages) In this paper the authors propose a Nyström method based on a "truncated" Gaussian rule to solve systems of Fredholm ...