Question

y 1/2x+2 é crescente ou decrescente

Answer 1

Resposta:

a resposta é crescente.

Answer 2

$\boxed{\begin{array}{l}\sf chama-se~func_{\!\!,}\tilde ao~de~1^o~grau\\\sf toda~func_{\!\!,}\tilde ao~que\\\sf assume~a~forma~y=ax+b, \\\sf onde~a, b\in\mathbb{R},a\ne0\\\sf a\longrightarrow coeficiente~angular\\\sf b\longrightarrow coeficiente ~linear. \\\sf se~a>0\longrightarrow func_{\!\!,}\tilde ao~crescente\\\sf a<0\longrightarrow fun_{\!\!,}\tilde ao~decrescente\end{array}}$

$\boxed{\begin{array}{l}\sf f(x)=\dfrac{1}{2}x+2\implies a=\dfrac{1}{2}~~b=2\\\sf como~a=\dfrac{1}{2}>0\implies a~func_{\!\!,}\tilde ao~\acute e~crescente\end{array}}$