Question

Dada a função f por f(x) = 3x-9, com x € R e y € R determine:

a) f(-1) =

b) f(0) =

c) f(3) =

d) f(1/3) =​​

Answer 1

a) 3(-1)-9 = -3-9= -12
b)3(0)-9 = -9
c) 3(3)-9 = 9-9= 0
d)3(1/3)-9 = 1-9 = -8