find the other endpoint when other endpoint (-9,18) and midpoint (-1,27) are given
Carol H.
answered • 09/18/18
Masters' Degree in Mathematics with 35 Years of Teaching Experience
Xm = (x1 + x2)/2
-1 = (-9 + x2)/2
-2 = -9 + x2
7 = x2
ym = (y1 + y2)/2
27 = (18 + y2)/2
54 = 18 + y2
36 = y2
E(7,36)
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