Question

Dada à função do 1º grau F(x)= 1-5x. Determinar:
a) F(0)
b) F(-1)
c) F(1/5)
d) F(8)

Answer 1

f(x)=5x-1

f(0)=5.0-1
f(0)=-1

f(-1)=5.(-1)-1
f(-1)=-5-1
f(-1)=-6

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

f(8)=5.8-1
f(8)=40-1
f(8)=39