Question

Given the function f(x) = 2x, find the value of f−1(32).

f−1(32) = 0
f−1(32) = 1
f−1(32) = 5
f−1(32) = 1​

Answer 1

find the inverse

exchange x for y and y for x

y=2x

then

x=2y---------> clear y

y=x/2

f−1(x)=x/2

for x=32

f−1(32)=32/2----------> 16

the answer is 16