Respuesta :

midpoint = (2, 8)

coordinate a = (10. 12)

let coordinate b = (x, y)


Find x:

0.5(10 + x) = 2

10 + x = 4 

x = 4 - 10

x = -6


Find y:

0.5(12 + y) = 8

12 + y = 16

y = 16 - 12 

y = 4


Answer: Coordinate b = (-6, 4)


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