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Mathematics 8 Online
OpenStudy (anonymous):

write the equation of a best-fit line. (19,177) and (18,168)

OpenStudy (anonymous):

There is simple solution: y = 9x+6 http://www.hackmath.net/en/calculator/line-slope?x0=19&y0=177&x1=18&y1=168&submit=Solve Because you give 2 points that exactly determine only one line. If you enter more points you must use some interpolation/approximation of given curve by line i.e. by method least squares.

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