Precalculus Examples

$(0, 1)$ ,

$(1, 0)$

Step 1

Since for each value of

$x$ there is one and only one value of

$y$ , the given relation

$(0, 1), (1, 0)$ is a function.

The relation is a function.

Step 2

Since the relation is a function and for each value of

$y$ there is one and only one value of

$x$ , the given relation

$(0, 1), (1, 0)$ is a one-to-one function.

The relation is a one-to-one function.

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