If R(5, 6) is the midpoint of the line segment AB joining the points A(6, 5) and B(4, y) then y equals
⇒ If P(x, y) is the midpoint of the line joining AB then By Midpoint Formula we have,
⇒ and y
Finding the value of y:
⇒
⇒
⇒ 12 = 5 + y
⇒ y = 12 – 5
⇒ y = 7
Therefore the value of y is 7