Question

ajudem pfvv 20 pontos

Dada a função f(x) = 2x - 1, determine:
a) f(2)
b) f(-1)
c) f(1)
d) f(0)
e) f (1/2)

Answer 1

Resposta:

a) f(2) = 3

b) f ( -1 ) = -3

c) f ( 1 ) = 1

d) f ( 0 ) = -1

e) f ( 1/2 ) = 0

Explicação passo-a-passo:

a) f ( 2 ) = 2 * 2 - 1

  f ( 2 ) = 4 - 1

  f ( 2 ) = 3

b) f ( -1 ) = 2 * ( -1 ) - 1

  f ( -1 ) = -2 - 1

  f ( -1 ) = -3

c) f ( 1 ) = 2 * 1 - 1

  f ( 1 ) = 2 - 1

  f ( 1 ) = 1

d) f ( 0 ) = 2 * 0 - 1

   f ( 0 ) = 0 - 1

   f ( 0 ) = -1

e) f ( 1/2 ) = 2 * 1/2 - 1

  f ( 1/2 ) = 1 - 1

  f ( 1/2 ) = 0