Question

If f(x) = x, the inverse off, f-1 could be represented by

Answer 1

Solution

For this case we have the following function given:

y=f(x)= x

And we want to find the inverse so we can do the following steps:

1) replace y with x

x= y

2) solve for y

y = x

Then the folution would be:

A) f-1 (x) =x