Explanation:
Hey there!
Here,
Given, The midpoint of two points is (11,-5). And another coordinate is (19,-14).
We need to find tge missing coordinate.
Let (x,y) be another endpoint of line.
So, Using midpoint formula,

Put all values.

Since they are equal, equating with their corresponding elements we get,

Simplify it.


Therefore the value of x is 3.
Again,



Therefore the value of y is 4.
So, the coordinates are (3,4).
Hope it helps.....