Respuesta :
You add the x-coordinates and then divide the sum by 2, then you get the x -coordinate of the midpoint. Do the same with the y-coordinates.

The midpoint of the CD is E = (1, -3.5) if C=(9, 2) and D= (-7, -9) the answer is (1, -3.5).
What is an ordered double?
It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).
We have two order double:
C = (9, 2) and
D = (-7, -9)
The midpoint of CD:
Let E is the midpoint.
E(x) = (9-7)/2 = 1
E(y) = (-9+2)/2 = -3.5
E = (1, -3.5)
Thus, the midpoint of the CD is E = (1, -3.5) if C=(9, 2) and D= (-7, -9) the answer is (1, -3.5).
Learn more about the order double here:
brainly.com/question/10757890
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