Respostas

2014-03-05T12:14:36-03:00
F(x) = 2x -1
Fx + h) = 2 (x + h) - 1
F(x + h) = 2x + 2h -1
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  F(x + h) - F(x) = 2x + 2h - 1 - 2x = 2h - 1