Question

seja a função dada por f(x) = 1/4 elevado a x. Determine:

a) f(0) =

b) f(4) =

c) f(1) =

d) f(2) =

e) f(1/2) =

Answer 1

A)

f(0)= (1/4)^0

f(0)= 1

B)

f(4)= (1/4)^4

f(4)= 1/(4.4.4.4)

f(4)= 1/256

C)

f(1)= (1/4)^1

f(1)= 1/4

D)

f(2)= (1/4)²

f(2)= 1²/4²

f(2)= 1/16

E)

f(1/2)= (1/4)^1/2

f(1/2)= √(1/4)

f(1/2)= √1/√4

f(1/2)= 1/2

Answer 2

     

      f(x)  =  ( 1/4 )^x

      Respostas:

      a)...  f(0)  =  ( 1/4)^0  =  1

      b)...  f(4)  =  ( 1/4 )^4  =  1.1.1.1 / 4.4.4.4  =  1 / 256

      c)...  f(1)   =  ( 1/4 )^1   =  1 / 4

      d)...  f(2)  =  ( 1/4 )^2  =  1.1 / 4.4  =  1 / 16

      e)...  f(1/2)=  ( 1/4 )^1/2  =  raiz de 1/4  =  1/2