The midpoint of a line segment with endpoints (x₁, y₁) and (x₂, y₂) is given by the formula ((x₁ + x₂)/2, (y₁ + y₂)/2).
Given that Z(-5,9) and R(-2,7), we can substitute these values into the formula:
W = ((-5 + -2)/2, (9 + 7)/2) = (-7/2, 16/2) = (-3.5, 8)
So, the coordinates of W, the midpoint of ZR¯¯¯¯¯¯¯ are W(-3.5, 8).