Write the ordered pair that represents yz. then find the magnitude of yz. y(-5,7), z(-1,2)

The order pair that represents yz can be found as follows:
yz = z - y = (-1 , 2) - (-5,7) = (4 , -5)

The magnitude of yz can be calculated as follows:
magnitude yz = sqrt [(4)^2 + (-5)^2]
                      = sqrt (41)
                      = 6.403

The second and fourth answer are correct