Step 1: Determine the coordinates of M, the midpoint of line NZ.
The coordinates of N are (−6,−6) and Z are (5,−3).
The midpoint formula is M=(2x1+x2,2y1+y2).
Substitute the coordinates of N and Z:
M=(2−6+5,2−6+(−3))
M=(2−1,2−9)
The coordinates of M are (−21,−29).