Asked by stephanie

the midpoint of a line segment is (3,4). one of the endpoints of that line segment is (7,4). what is the other endpoint?

Answers

Answered by Reiny
let the other endpoint be (a,b)
by the midpoint method:

(a+7)/2 = 3
a+7 = 6
a = -1

(b+4)/2 = 4
b+4 = 8
b = 4

the other point is (-1,4)
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