Question

Dadas as funções f(x) = -x + 1/2 e g(x) = 2x - 4, calcule os valores de x para os quais g(x) < f(x).

Answer 1

$g(x)\ \textless \ f(x)$

$2x-4\ \textless \ -x+ \frac{1}{2}$
$3x\ \textless \ 4+ \frac{1}{2}$    mmc = 2

$6x\ \textless \ 8+1$
$6x\ \textless \ 9$
$x\ \textless \ \frac{9}{6}$
$x\ \textless \ \frac{3}{2}$

Answer 2

Olá Dona Elane, fiz diferente.
g(x)<f(x)
2x-4<-x+1/2
2x-4+x-1/2<0
3x-9/2<0
x<9/2 dividido3
x<3/2