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Secondary V • 1yr.

Is this a function or not?


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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 1yr.


    No, this is not a function. To be a function, each value of x should be associated with one and only one value of y. However, here, we have many values of y for one value of x.

    For exemple, at x=0, we have y=2 AND y=-2.

    At x=5, we have many values of y.


    Therefore, this is a relation, not a function. You can find more exemples here : Algebra - Relations and Functions | Secondaire | Alloprof

    I hope I was able to help you! Feel free to ask us more questions if you have any!

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