B.
to find the vector you look at the components. 2-4=-2 so the x component is -2, and 8-2=6 so the y component is 6.
to find the magnitude you use pythagorean theorem
to find the vector you look at the components. 2-4=-2 so the x component is -2, and 8-2=6 so the y component is 6.
to find the magnitude you use pythagorean theorem
