Question

Which gives the line of best fit?

f(x)=45x

f(x)=x

f(x)=2x

f(x)=45x+45

Answer 1

f(x) = x

Explanation:

example of points on line: (40,40), (45,45), (50,50)

x-values are the same as y-values which means the line is y=x