$$f$$ is a finite function whose domain is the letters a to e. The following table lists the output for each input in $${f}^{\prime} {s}$$ domain.Is$$f$$ invertible? ![](http://admin.getprephub.com/media/editor/problem%2020_20220823193936881701.png) ![](http://admin.getprephub.com/media/editor/Screenshot%202022-09-23%20191635_20220923134649325408.png)

In the given problem, ![](http://admin.getprephub.com/media/editor/Screenshot%202022-09-23%20191918_20220923134928750403.png) $$f(a)=1, f(b)=2 ; f(c)=4, f(d)=8, f(e)=16 .$$ Since, all the elements in the domain hare unique images. Therefore $$f$$ is invertible.

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$f$ is a finite function whose domain is the letters a to e. The following table lists the output for each input in ${f}^{\prime} {s}$ domain.Is $f$ invertible?

$Yes$

$No$

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