Question

funções (dou 50 pontos)​

Answer 1

$1.\\f(x)=2x-2\\\\x=-2\Rightarrow f(-2)=-6\\x=0\Rightarrow f(0)=-2\\x=2\Rightarrow f(2)=2\\x=4\Rightarrow f(4)=6\\x=6\Rightarrow f(6)=10$

$D=\left \{ -2,0,2,4,6\left. \right \} \right., \ CD=\left \{ -6,-2,2,6,8,10,12\left. , \ Im(f)=\left \{ -6,-2,2,6,10 \right. \right \} \right.$

$2. \\f(x)=2x+1\\\\x=\frac{1}{2}\Rightarrow f(\frac{1}{2})=2\\x=-1\Rightarrow f(-1)=-1\\x=-3\Rightarrow f(-3)=-5\\x=0\Rightarrow f(0)=1$

$3.\\f(x)=-3x+2\\\\-3x+2=-1\Rightarrow x=1\\-3x+2=2\Rightarrow x=0\\-3x+2=-4\Rightarrow x=2$

Answer 2

Resposta: não sei, desculpa preciso muito de P0nt os

Explicação passo a passo: