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March 26, 2017

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Explain how to know wheather the endpoint of the graph of an inequality should be a closed dot or an open dot.

  • MATH PRE-ALGEBRA - ,

    It should be an open dot because it's an inequality. It would be a closed dot if it was an equality, such as x=3.

  • MATH PRE-ALGEBRA - ,

    If the inequality contains either ≤ or ≥, then close the dot of the endpoint, since that point is included in the graph.

    If the inequality contains eitehr < or > , then leave the dot open to show that the endpoint itself is not included in your graph.

  • MATH PRE-ALGEBRA - ,

    yes! if it is addition or subtraction you have an open dot! if it multiplication or division than a closed dot!

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