Respostas

  • Usuário do Brainly
2014-08-29T10:16:04-03:00
F(-1) = 1 - 3/4x

f(-1) = 1 - 3/4.(-1)

f(-1) = 1+ 3/4

f(-1) = 7/4

B) 1 - 3/4x = 0

-3/4x = -1

x = 4/3