Expert: Scott A Wilson - 9/29/2009

Question
What are the methods of converting non-linear graphs to linear one?? what is the advantage in doing so??plz help

Answer
The method is called finding a best fit straight line.
Count the terms and call it N.
Find the sum of the x and call it Sx.
Find the sum of the squares and call it Sx2.
Find the sum of the y and call it Sy.
Find the sum of the xy and call it Sxy.
Make the matrix
N   Sx  Sy
Sx Sx2 Sxy
where the first two terms are for x and y,
respectively, and the third term is the value of each equation.

The reason for doing this is it gives you and A as the first variable and a B as the second,
which allow future production to be approximated as Ax+b.