Resposta :
Resposta:
Explicação passo-a-passo:
Inversa ;
a) f(x) = 2x-4
[tex]f^{-1} (x)=y=2x-4\\x=2y-4\\2y=x+4\\y=\frac{x+4}{2}[/tex]inversa
b)f(x)= -3x+12
[tex]f^{-1}(x) =y=-3x+12\\x=-3y+12\\3y= -x+12\\y=\frac{-x+12}{3} \\ou\\y=\frac{-x}{3} +\frac{12}{3} \\y=\frac{-x}{3} +4[/tex]inversa