Question

Na função f(x) = - 4.x + 13, quando corresponde f(5) =?

Answer 1

$\sf\:f(x) - 4x + 13 \\ \sf\:f(5) = - 4 \cdot5 + 13 \\ \sf\:f(5) = - 20 + 13 \\ \sf\:f(5) = - 7$

Att: Nerd1990