Answer:
F-1(x)=7/(x+9)
Step-by-step explanation:
Change F(x) to y so y=7/x -9
Swap variables x=7/y -9
Solve x+9=7/y
7/(x+9)=y
Then change y to F inverse
F-1(x)=7/(x+9)
Thats ur inverse!!!
Answer:
(x+9)/7
Step-by-step explanation:
Let f(x) = y;
y =7/x - 9
y + 9 = 7x
x = (y + 9)/7
Substitute x for y and X = f^{-1}(x)
f^{-1}(x) =(x+9)/7 this is the inverse of f(x)
