We have to work on the two coordinates separately.
The x coordinate changed from -4 to -2, which means that the point gained 2 units on the x axis, which in turn means that the point was shifted 2 units to the right.
The y coordinate didn't change, which means that the point is not moving vertically.
So, the point was moved by a translation of 2 units to the right.
10 you would take 50/ .2
determine the translation.