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4 August, 10:31

How do you determine if the graph opens up or opens down?

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  1. 4 August, 12:21
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    see below

    Step-by-step explanation:

    Assuming this is for a parabola

    The coefficient of the x^2 term

    If it is positive it opens upward

    + it makes a smile

    If it is negative it opens down

    - it frowns
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