Question

Dada a função f(x) = 5x - 8. Calcule f(2/3)

Answer 1

$f( \frac{2}{3})=5.( \frac{2}{3})-8$
$f( \frac{2}{3})= \frac{10}{3}-8$
$f( \frac{2}{3})= -\frac{14}{3}$