Question

Which formula gives the coordinates of the midpoint of the segment connecting points (a, b) and (c, d)?

Answer 1

When looking for the point precisely in between two different points, the average of both coordinate points are taken. Since you are given 2 pairs of x and y coordinates, you just have to look for the average of the x-coordinates, and the average of the y-coordinates. To illustrate:

Midpoint = ( (a + c)/2 , (b + d)/2 )