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AleksandrR [38]
4 years ago
14

Need help with 18 please and thank you!!

Mathematics
1 answer:
Alexxandr [17]4 years ago
7 0

midpoint is the average of the two points, so:

let (x,y) be the other endpoint

(-1+x)/2 = 3

(5+y)/2 = 8

Solve:

-1 + x = 6

x = 7

5 +y = 16

y = 11

So the coordinate of the other endpoint is (7,11)

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