Question

Which is the inverses I still don’t get this

Answer 1

Answer:

C.

${ \tt{f(x) = \frac{12}{x} - 18}} \: and \: { \tt{g(x) = \frac{12}{x + 18} }}$

Step-by-step explanation:

${ \tt{f(x) = \frac{12}{x} - 18}}$

Let inverse be m:

${ \tt{m = \frac{12}{x} - 18 }} \\ { \tt{x(m + 18) = 12}} \\ { \tt{x = \frac{12}{m + 18} }} \\ \\ { \boxed{ \sf{f {}^{ - 1} (x) = g(x) = \frac{12}{x + 18} }}}$