Now if S is the midpoint of PQ the PSPQ. The midpoint is 5 4 5 4. Find the midpoint P between 1 2 and 3 6.
Position vectors the vector from point a to point b the midpoint formula vector addition scalar multiplication.
Similarly if we want to find the midpoint of a segment in the 3-dimensional space we can determine the midpoint coordinate using the formula. Put a point S xmym around midway between P and Q and drop a perpendicular from S hitting PR at T xm y1. Now check to see if this point is on the line y2x-49. The midpoint and distance formula in 3D can be derived using a method of addition of the geometric representation of vectors.