Respuestas

2013-11-01T19:30:26+01:00
(x+2, y + 7 ) = 2/5 ( 5 -(-2), 7-(-7) ) = 2/5 ( 7, 14 )

x+2 = 2/5 * 7  = 14/5    X = 14/5 -2 = 4/5

y+7 = 2/5 * 14 = 28/5     y = 28/5 -7 = 7/5

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(x+2, y + 7 ) = -2/9 ( 7, 14 )

x+2 = -14/9     x = -14/9 -2 = -32/9

y+7 = -28/9      y = -28/9 -7 = -91/9

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