temperance1 temperance1

08-03-2017
Mathematics

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Explain how you can tell wether the graph of a quadratic function opens up or down

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blairt1 blairt1

08-03-2017

If the function is already in the form of y = ax²+bx+c, then all you have to do is look at "a". If it "a" is positive, then it will open up(look like a U) if "a" is negative, then it will open down(look like an upside down U)

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