If the coordinates of the mid-point of the line segment joining the points (2,1) and (1,-3) is (x, y). What is the relation between x and y?
6x + y = 8
From the section formula if (x, y) are the midpoints of the line segment joining (x1,y1) and (x2,y2), then x = x1+x22 and y = y1+y22. So x = 32 and y = -1. Among the equations given just for the one that satisfies the value of x = 32 and y = -1