If there are two points x₁, y₁ and x₂, y₂, the middle point is

x= (x₁+x₂)/2, y= (y₁+y₂)/2

In the given problem x=7, y=10 and x₁= 3 and y₁=5. Substituting these values in the formula for the middle point, we have

7= (3+x₂)/2 and 10= (5+y₂)/2, where x₂, y₂ are the coordinates of the other end point.

Solving for x₂ and y_2, we will have

x₂₌ 14-3 =11 , y₂ =20-5 ₌15

Thus the other end point is (11,15)

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