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OpenStudy (anonymous):
In which direction does the parabola open? \[y =~–3x^2 + 5x + 10\] A. down B. up C. left D. right
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TheSmartOne (thesmartone):
Do you have any idea? Have you graphed it? :P
OpenStudy (anonymous):
Yes, I have graphed it. I believe the answer is B. or D. I am a little confused about it actually.
TheSmartOne (thesmartone):
Hint: \(\sf ax^2+bx+c\) If \(\sf a>0\) then it opens upwards If \(\sf a<0\) then it opens downwards
TheSmartOne (thesmartone):
What does your graph look like? o.O Make sure you graphed it correctly.
OpenStudy (anonymous):
Oh, then the answer is A. And I meant to say A. or B. not D. XD
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TheSmartOne (thesmartone):
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TheSmartOne (thesmartone):
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