Question

Use f(x) = 1/2x and f-1(x) =2x to solve the problems

f(2) = __
f-1(1) = __
f-1(f(2)) = __

Answer 1

f(2)=1/4 f-1(1)=2 f-1(f(2))=1/2

Explanation:

f(x)=1/2x

f(2)=1/2(2)

f(2)= 1/4

f-1(x)=2x

f-1(1)=2(1)

f-1(1)=2

f-1(f(x))= 2(1/2x)

f-1(f(2))=2(1/2(2))

f-1(f(2))=1/2