X X\,X is the point (0,7)(0, 7)(0,7) and Y Y\,Y is the point (−2,3)(-2, 3)(−2,3). Write down as a column vector XY⃗\vec{XY}XY.
M M\,M is the point (4,−5)(4, -5)(4,−5) and N N\,N is the point (1,−1)(1, -1)(1,−1). Write down as a column vector MN⃗\vec{MN}MN.