Question

Dada a função afim f(x) =8x+3, determine os valores de x para que:
a) f(x)=1
b) f(x) =0
c) f(x) = -13

Answer 1

a)
f( 1 )=8.1+3
f( 1 )=8+3=11
b)
f(0)=8.0+3
f(0)=0+3=3
c)
f(-13)=8.(-13)+3
f(-13)=-104+3=101

Answer 2

a) f(x)= 8x +3
f(1)= 8.1+3
f(1)= 8+3
f(1)= 11

b) f(x)= 8x +3
f(0)= 8.0+3
f(0)= 0+3
f(0)= 3

c) f(x)= 8x +3
f(-13)= 8.(-13)+3
f(-13)= -104+3
f(-13)= -107