We have been given a segment AB and we are asked to find the x coordinate of the midpoint of AB. A - x = 4 B - x = -2 the distance from A to B is; 2 units to the right from -2 to 0 4 units to the right from 0 to 4 The total distance is 2 units + 4 units = 6 units The midpoint is 6/2 = 3 units from both A and B points. 3 points from -2 to the right is -2+3 = +1 3 points from 4 to the left side 4-3 = +1 Therefore x value for midpoint is x = 1
