Question

obtain a single matrix whose column space has B = { (1, 1, 0, 0), (9, 1, 0, 1)}

Matrices
obtain a single matrix whose column space has $$B = { (1, 1, 0, 0), (9, 1, 0, 1)}$$
$$[1,1,0,0,9,1,0,1]$$