- #1

sutupidmath

- 1,630

- 4

y=mx+b, where m is the slope of the line of best fit,

I know that the slope is equal to

m=SS(xy)/SS(x), where SS(x) is the sum of square of x, while SS(xy) the sum of the squares of x,y. also

b=[SUM(y)-m*SUM(x)]/n but i have no idea how one would come up with these expressions.

Can somebody show a proof for this, or just point me to the right direction?