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OpenStudy (anonymous):
Determine whether the graph opens upward or downward and why. f(x)=-4x2 - x + 1
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OpenStudy (anonymous):
downwards because its -4x2.. if it was 4x2 then it would be upwards
OpenStudy (anonymous):
its a downward graph since x goes from -1 to 0.75
OpenStudy (anonymous):
thank you
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