Question

dada a função do 1°- grau f(x) =1-5/2x calcule.

A)f(0)
B)f(-1)
C)f(2)
D)f(1/5)​

Answer 1

Resposta:

A)f(0)

f(x) =1-5/2x

f(0)=1-5/2×0

f(0)= -4/0

B)f(-1)

f(x) =1-5/2x

f(-1)= 1-5/2(-1)

f(-1)= -4/-2

f(-1)= 2

C)f(2)

f(x) =1-5/2x

f(2)=1-5/2×2

f(2)= -4/4

f(2)= -1

D)f(1/5)

f(x) =1-5/2x

f(1/5)=1-5/2×(1/5)

f(1/5)= -4/(2/5)