Joints) For our new simplified model, our design matrix is A so our predicted response vector Y can be expressed as Y = "5:. (:3 here is dened same way it was in Question 2.) ier in this homework , we established several properties that held true for the simple ar regression model that contained an intercept term. F or each of the following four )erties , state whether or not they still hold true even when there isn't an intercept n. Be sure to justify your answer. (2 points) 23:] s1; = 0. I (2 points ) The column vector i" and the residual vector 6 are orthogonal w (2 points ) The predicted response vector k" and the residual vector 6 are orthogonal I (2 points) (11,?) is on the regression line