Given parameters:
Coordinate of the two points = A(-9, 2) and B(5,-4)
Unknown:
The mid point of AB;
Solution
To find the mid point of line AB, use the expression below;
,
=
,

x₁ = -9, x₂ = 5
y₁ = 2, y₂ = -4
Input the parameters and solve;
,
=
,
=( -2, -1 )
The coordinate of the mid point is ( -2, -1 )