Answer:
( 1, - 3.5 )
Explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) the midpoint is
( , )
Here (x₁, y₁ ) = C (9, 2) and (x₂, y₂ ) = D (- 7, - 9 )
midpoint = ( , ) = ( , ) = (1, - 3.5 )
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