Examples

$f = ((5, 2), (3, 4), (5, 6))$

Step 1

Since $x = 5$ produces $y = 2$ and $y = 6$ , the relation $(5, 2), (3, 4), (5, 6)$ is not a function.

The relation is not a function.

Step 2

The relation $(5, 2), (3, 4), (5, 6)$ is not a function, so there is no inverse can be found.

No inverse can be found

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$