Answer:
B
Step-by-step explanation:
The question is on inverse of functions
f(x)=2x-9 -----------to find f ⁻(x)
replace f(x) with y;
f(x)=2x-9----------------y=2x-9
replace y with x and x with y
y=2x-9------------------x=2y-9
solve for y
x=2y-9
x+9=2y
(x+9)/2 =y
replace y with g(x) or f ⁻(x)
g(x)=x+9 /2
