Question

For the function f(x) = x + 9, find (f o f 1^-1)(5)

Answer 1

I hope this helps you



y=x+9


x=y-9 f^-1 (x)= x-9


x=5 f^-1 (5)=5-9 = -4

f (f^-1))=f (-4)=?


x= -4

f (-4)=-4+9

f (-4)= 5