Given the following coordinates in the plane (x,y): (1,1), {3,1), (7,3). Find point A which minimizes the sum of the squared distances between A and each point. a) What is the value of x for A? (if needed, round your answer to 2 digits after the decimal point.) Given the following coordinates in the plane (x,y): (1,-1), {3,1), (7,3). Find point A which minimizes the sum of the squared distances between A and each point. b) What is the value of y for A? (If needed, round your answer to 2 digits after the decimal point.)