Question

Dada a função do 1° grau f(x)=1-5x, determine: (PRECISO DE TODAS AS RESPOSTAS)



a) f (1/5)

b) (-1/5)

c) f(8)

d) f(10)

e) (12)

POR FAVOR, PRECISO DE TODAS AS RESPOSTAS OK? ME AJUDEM POR FAVOR

Answer 1

f(x) = 1 -5x

a) f(1/5) = 1 - 5 . 1/5
f(1/5) = 1 - 5/5
f(1/5) = 1-1 = 0


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


c) f(8) = 1 - 5 . 8
f(8) = 1 - 40
f(8) = -39

d) f(10) = 1 - 5 . 10
f(10) = 1 - 50
f(10) = -49


e) f(12) = 1 - 5 . 12
f(12) = 1 - 60
f(12) = -59

Answer 2

a) f(x)= 1-5x
f(1/5)=1-5(1/5)
f(1/5)=1-5/5
f(1/5)= 1-1
f(1/5)=0

B) f(x)= 1-5x
f(-1/5)= 1-5(-1/5)
f(-1/5)= 1-(-5/5)
f(-1/5)= 1-(-1)
f(-1/5)= 1+1
f(-1/5)=2

c) f(x)= 1-5x
f(8)= 1-5(8)
f(8)= 1-40
f(8)=-39

d) f(x)=1-5x
f(10)= 1-5(10)
f(10)= 1-50
f(10)=-49

e) f(x)= 1-5x
f(12)= 1-5(12)
f(12)=1-60
f(12)=-59