Answer :
[tex]f(x)=3x+2\\\\y=3x+2\ \ \ |-2\\\\3x=y-2\ \ \ \ |:3\\\\x=\dfrac{y-2}{3}\to f^{-1}(x)=\dfrac{x-2}{3}[/tex]
[tex]f^{-1}(14)=\dfrac{14-2}{3}=\dfrac{12}{3}=4[/tex]
[tex]f(f^{-1}(14))=3\cdot4+2=12+2=14[/tex]
Answer: d) 14
[tex]f^{-1}(14)=\dfrac{14-2}{3}=\dfrac{12}{3}=4[/tex]
[tex]f(f^{-1}(14))=3\cdot4+2=12+2=14[/tex]
Answer: d) 14
