Q4 of 157 Page 760

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

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