Respostas

2014-06-10T08:30:30-03:00
A) F (x) = 1- 5/2 x
     
      F(-1) = 1 - 5/2 * -1
      F(-1) = 1 - 2,5 *- 1
      F(-1) = -1,5 * -1
      F(-1) = 1,5

  F(5/2) = 1 - 5/2 * 5/2
  F(5/2) = -1,5*2,5
  F(5/2) =  - 3, 75