Question

considere a função f(x)3x-1 calcule (1/2)

Answer 1

f(x)= 3x-1

$f( \frac{1}{2} ) = 3. \frac{1}{2}-1$
$f( \frac{1}{2} ) = \frac{3}{2} -1$

Aplique o m.m.c.

$f( \frac{1}{2}) = \frac{3-1}{2}$
$f( \frac{1}{2} ) = \frac{2}{2}$
$f( \frac{1}{2} ) = 1$