Answer:
Answer: B
Step-by-step explanation:
[tex]f(x) = \frac{12}{x} - 18 \\ [/tex]
let its inverse be m :
[tex]m = \frac{12}{x} - 18 \\ \\ m + 18= \frac{12}{x} \\ \\ x = \frac{12}{m + 18} \\ \\ { \boxed{ \boxed{f {}^{ - 1}(x) = \frac{12}{x + 18} }}}[/tex]
