Question

dada a função f(x) = 5x + 2 calcule
d) (3/4) e) (-1/5)

Answer 1

f(3/4) = 5 . 3/4 + 2      f(3/4) = 15/4 + 2   mmc =4
          = (15 + 8)/4
           =  23/4
           = 5,75

f(-1/5) = (5 . -1/5 + 2 )
           =  1