SOLUTION: m is the midpiont of QR, Q (-3, 5), and M is (7,-9) what are the coordinates of R?

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Question 233306: m is the midpiont of QR, Q (-3, 5), and M is (7,-9) what are the coordinates of R?
Found 2 solutions by rfer, Alan3354:
Answer by rfer(10432) About Me  (Show Source):
Answer by Alan3354(21605) About Me  (Show Source):
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m is the midpiont of QR, Q (-3, 5), and M is (7,-9) what are the coordinates of R?
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From Q to M, x changes +10, y changes -14
Add the changes to M to get R
R(17,-23)