Question

Me ajudem porfavor, urgenteee
matéria: funções noções básicas​

Answer 1

$f(x)=\frac{3x-7}{x+1}\rightarrow y=\frac{3x-7}{x+1}\rightarrow x = \frac{3y-7}{y+1}\\\\x(y+1) = 3y-7\rightarrow xy+x=3y-7\rightarrow xy-3y=-7-x\\\\y(x-3)=-7-x\rightarrow y=\frac{-7-x}{x-3}\rightarrow g(x) = \frac{-7-x}{x-3}\\\\g(x)=\frac{-7-x}{x-3}\rightarrow g(x)=\frac{-7-2}{2-3}\rightarrow g(x)=\frac{-9}{-1}=9$