I have a linear model which is represented by the following plot, with a fitted line:
I see that there is a pattern in the residual plot, and also that the residuals are not normally distributed. So from the model given by :
$y=ax$ for some $a \in \Bbb R$
I transform it into the following model:
So then here is my residual plot:
And the distribution plot of the residuals:
Well, now my residual plot and the residuals' distribution looks better, since in the residual plot there is no pattern and the distribution is now improved.
But here is the plot with the new fitted line of the transformed linear model:
$1)$Is the transformation which I made a good transformation?
$2)$Do I have to "care" about the new fitted line? I'm not sure what to do with the fact that it's not alligned with the points like before.