Each coordinate of the midpoint between two points is given by the sum of the respective coordinates of those two points, divided by 2:
For the points (0,7) and (4,-9), we have:
x₁ = 0
y₁ = 7
x₂ = 4
y₂ = -9
Thus, the midpoint between those points is:
Therefore, the midpoint is: (2,-1)