Question

Please help with function notation question (see attached file)

Answer 1

Answer:

3.5 and 5

Step-by-step explanation:

Given

f(x) = $\frac{x+5}{x}$

To evaluate f(2) substitute x = 2 into f(x)

f(2) = $\frac{2+5}{2}$ = $\frac{7}{2}$ = 3.5

Similarly for $f^{-1}$(x)

$f^{-1}$ (2 ) = $\frac{5}{2-1}$ = 5