J is the midpoint of The coordinates of J are (-8,7) and the coordinates of K are (3,4) find the coordinates of L. can someone help me? i get really confused with geometry and im trying to finish this final and im not sure how to solve this problem ...?

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gsk6at8ellyBlaniello gsk6at8ellyBlaniello

22-11-2016
Physics

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J is the midpoint of The coordinates of J are (-8,7) and the coordinates of K are (3,4) find the coordinates of L. can someone help me? i get really confused with geometry and im trying to finish this final and im not sure how to solve this problem ...?

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Аноним Аноним · Answer 1 · 2016-11-24T01:21:25+01:00

Solution:

STEP 1:Let the coordinates of L be (x,y). Then use the Midpoint formula to solve for x and y
(3 + x)/2 = -8 and (4+ y)/2 = 4

3 + x = -16 and 4 + y =8
x = -16 -3 and y = 8 - 4
x= -19 and y= 4

Therefore the coordinates of L are (-19,4)

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