how do i find the coordinates of the midpoint of a segment having given the endpoint?

Question

K(-9,3),H(5,7)

Answer 1

K(-9,3),P(x,y),H(5,7).

X = (x1+x2)/2 = (-9+5)/2 = -2.
Y = (y1+y2)/2 = (3+7)/2 = 5.

Answer 2

K(9,3),h(5,7)