Posted by **rose** on Tuesday, September 11, 2012 at 10:17pm.

the coordinates of point S are given. the midpoing of RS is (6,-10). find the coordinates of point r. s(0,8)

- geometry -
**Steve**, Wednesday, September 12, 2012 at 10:25am
If we let M be the midpoint,

S-M = (0,8) - (6,-10) = (-6,18)

that means that M-R must also be (-6,18), or R = M-(-6,18)

R = (6,-10) - (-6,18) = (12,-28)

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