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The midpoint of a line segment is located at (1 -2). If one of the endpoints is (3, 9) , what is the other endpoint? Express your answer as an ordered pair.

 Oct 5, 2021
 #1
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From 3 to 1  is a distance of 2      go   2 more   to  x = -1

from 9 to -2 is a distance of 11    go 11 more to y = -13

 Oct 5, 2021

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