The midpoint of segment AB is M(-1, -1). The coordinates of point A are (-6, 4). Find the coordinates of point B.?
回答 (2)
2016-09-15 12:30 am
Let B = (x, y)
(-6 + x)/2 = -1
-6 + x = -2
x = 4
(4 + y)/2 = -1
4 + y = -2
y = -6
(-6 + x)/2 = -1
-6 + x = -2
x = 4
(4 + y)/2 = -1
4 + y = -2
y = -6
2016-09-15 12:22 am
sadasddas
收錄日期: 2021-04-21 21:52:49
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https://hk.answers.yahoo.com/question/index?qid=20160914162233AAjKG8E