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OpenStudy (anonymous):
y = -7x2 + 9x - 13 opens up or down and whether it has a maximum or minimum point please please help! guys i need help please!
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OpenStudy (jdoe0001):
y = -7x2 + 9x - 13 ^ leading coefficient is negative so it opens downwards, what does that mean? well |dw:1385770524910:dw|
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