Question

1) dada a função do 1 grau f(x) =(1- 5x) . Determinar :

a) f(0)

b) f(-1)

c) f(1/5)

d) f( -1/5)

. Agora marque a questao correta : a) 1,6,0,2
b) 1,4,0,1
c) 1,6,1,1
d) 1,4,0,2 ?​

Answer 1

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f(x) =(1- 5x)

a) f(0)

f(0) = ( 1 - 5.0)

f(0) =  1 - 0

f(0) =  1

b) f(-1)

f(-1) = ( 1 - 5.(-1))

f(-1) = ( 1 - ( -5))

f(-1) = 1 + 5

f(-1) = 6

c) f(1/5)

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

f(1/5) =  1 - 1

c) f(1/5) = 0

d) f( -1/5)

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

f( -1/5) =  1 - ( -1)

f( -1/5) = 1+ 1

f( -1/5) = 2

A alternativa correta é a letra a) 1,6,0,2