Respostas

2014-06-07T18:46:26-03:00
Para x = 3

y = 4.3-2
y = 12-2
y = 10
1 5 1
2014-06-07T19:18:12-03:00
F(x) = 10; x = ?
f(x) = 4x - 2
10 = 4x - 2
4x - 2 = 10
4x = 10 + 2
4x =12
  x = 12
         4
x = 3
1 5 1