Question

A taxa de variação de uma função afim é......​

Answer 1

$\large\boxed{\begin{array}{l}\rm A~taxa~de~variac_{\!\!,}\tilde ao~de~uma~func_{\!\!,}\tilde ao~afim\\\rm \acute e~constante~para~qualquer~intervalo\\\rm do~dom\acute inio(desse~modo~a~taxa~de~variac_{\!\!,}\tilde ao\\\rm \acute e~o~coeficiente~angular).Verifique~que~a\\\rm taxa~de~variac_{\!\!,}\tilde ao~da~func_{\!\!,}\tilde ao~afim:f:\mathbb{R}\longrightarrow\mathbb{R}\\\rm tal~que~f(x)=-3x+1~\acute e~-3\end{array}}$

$\large\boxed{\begin{array}{l}\underline{\rm soluc_{\!\!,}\tilde ao\!:}\\\sf Dada~uma~func_{\!\!,}\tilde ao~da~forma~f(x)=ax+b\\\sf ent\tilde ao\\\sf a\longrightarrow coeficiente~angular\\\sf b\longrightarrow coeificiente~linear\\\sf portanto~se~f(x)=-3x+1~ent\tilde ao~a=-3\\\sf e~portanto~o~coeficiente~angular~\acute e~-3\end{array}}$