Ebanil249 Ebanil249

27-02-2017
Mathematics

contestada

M(1,3) is the midpoint of RS. If S has coordinates (8,3) find the coordinates of R

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RosaT2001 RosaT2001

27-02-2017

The answer would be (-6,3)

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madhav10 madhav10

27-02-2017

let r=(x,y)
m=(r+s)/2
(1,3)=([x+8]/2 , [y+3]/2)

a) 1 = (x+8)/2
2 =x+8
x = -6
b) 3 = (y+3)/2
6 = y+3
y = 3

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