Question

qual é raiz da função f(x)=3x-27?​

Answer 1

$\Large\boxed{\begin{array}{l}\sf A~ra\acute iz~de~toda~func_{\!\!,}\tilde ao~f(x)=ax+b~\acute e\\\sf x=-\dfrac{b}{a}\\\sf portanto~se~f(x)=3x-27\\\sf a~raiz~\acute e~x=-\dfrac{-27}{3}=9\end{array}}$