What is the projection of v=(1,2)v=(1, 2)v=(1,2) onto the line y=xy=xy=x?
(1,1)(1, 1)(1,1)
(1.5,1.5)(1.5, 1.5)(1.5,1.5)
(0.5,0.5)(0.5, 0.5)(0.5,0.5)
(2,2)(2, 2)(2,2)