Respostas

2013-12-17T13:55:29-02:00
 f(x) = x² - x + 6
f(0) = 0² - 0 + 6 =
6
 f(- 1) = (- 1)² - (- 1) + 6 =
1 + 1 + 6 =
8

f(3) = 3² - 3 + 6 =
9 - 3 + 6 =
12