Respostas

2014-07-19T20:42:33-03:00
Y = 1/2 X - 2
0 = 1/2 X - 2
1/2 X = -2
X = 1/2 + 2
X = 3/2
  • Usuário do Brainly
2014-07-19T21:43:01-03:00
 (1/2) x - 2 = 0

0,5 x = 2
x = 2 : 0,5
x = 4