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T(8,15) is the midpoint of CD. The coordinates of D are (8,20). What are the coordinates of C?
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3 votes
T(8,15) is the midpoint of CD. The coordinates of D are (8,20). What are the coordinates of C?

User Zanderi
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2 Answers

4 votes
The mid point is 5 away from d so it should be five away from c. 8,5
User FiringBlanks
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7.9k points
3 votes
The coordinates of C must be (8,10).

If you plug in the values given in the midpoint formula

8= (8+(8))/(2)
and
15= (20+(10))/(2)

it matches perfectly with the provided midpoint

User Giant Elk
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7.4k points
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