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Course: Precalculus > Unit 1

Lesson 3: Invertible functions

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Determine if a function 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

's domain.

$x$ ‍	$a$ ‍	$b$ ‍	$c$ ‍	$d$ ‍	$e$ ‍
$f (x)$ ‍	$1$ ‍	$2$ ‍	$3$ ‍	$1$ ‍	$2$ ‍

Answer $2$ ‍ questions about the function.

Build the mapping diagram for $f$ ‍ by dragging the endpoints of the segments in the graph below so that they pair each domain element with its correct range element.

Is $f$ ‍ is invertible?

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Determining if a function is invertible

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