Use the table below to fill in the missing values.

x\displaystyle {x}f(x)\displaystyle {f{{\left({x}\right)}}}
07
19
28
31
45
54
62
70
83
96


f(6)=\displaystyle {f{{\left({6}\right)}}}=

f(x)=3x=\displaystyle {f{{\left({x}\right)}}}={3}\quad{x}=

f1(2)=\displaystyle {{f}^{{-{{1}}}}{\left({2}\right)}}=

f1(x)=8x=\displaystyle {{f}^{{-{{1}}}}{\left({x}\right)}}={8}\quad{x}=