Algebra Examples

$(- 5, 9)$ , $(3, 9)$

Step 1

Since for each value of $x$ there is one and only one value of $y$ , the given relation $(- 5, 9), (3, 9)$ is a function.

The relation is a function.

Step 2

Since for each value of $y$ there is more than one $x$ value, the given relation $(- 5, 9), (3, 9)$ is not a one-to-one function.

This relation is not a one-to-one function.

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