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Área = xy / 2
pendiente de la recta = m
Tenemos: (0,y) y (2,4)
m = 4 - y
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2 - 0
(2,4) y (x,0)
m = 0 - 4
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x - 2
4 - y = 0 - 4
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2 - 0 x - 2
4 - y = - 4
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2 x - 2
4 - y = - 8
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x - 2
y - 4 = 8
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x - 2
y = 8 + 4
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x - 2
y = 8 + 4x - 8
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x - 2
y = 4x
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x - 2
Área = xy / 2
Área = x . 4x
--- -------
2 x - 2
Área = 2x²
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x - 2