Examples

$(2, 2)$ , $(2, 4)$

Step 1

The given relation $(2, 2), (2, 4)$ is not a function because of the $x$ values paired with more than one $y$ value $2, 4$ .

This relation is not a function.

Step 2

Since the relation is not a function, it cannot be a one-to-one function.

The relation cannot be a one-to-one function.

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