Please help me with this geometry problem I don't understand, no I'm not trying to get someone to do my homwork Ik the answer (6,-12)?

2017-09-01 9:13 am
The coordinates of point Y are given. Y (0,2) the mid point of line XY is (3,-5). What's the coordinates of X

回答 (3)

2017-09-01 9:19 am
✔ 最佳答案
 
Midpoint of (x₁, y₁), (x₂, y₂) is ((x₁+x₂)/2, (y₁+y₂)/2)

X = (x, y)
Y = (0, 2)

Midpoint = ((x+0)/2, (y+2)/2) = (3,−5)

(x+0)/2 = 3
(y+2)/2 = −5

Solve for x and y
2017-09-01 9:54 am
(6 , -12)
2017-09-01 9:15 am
X(a,b)
a+0=2(3)--->a=...

b+2=2(-5)--->b=...


收錄日期: 2021-04-24 00:40:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170901011319AAlobbI

檢視 Wayback Machine 備份