The adjoining figure shows the graph of y=a x^2+b x+c. Then (A) a0 (B) b^24 a c (C) c0 (D) a and ...

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The adjoining figure shows the graph of y=a x^2+b x+c.
Then
(A) a0
(B) b^24 a c
(C) c0
(D) a and b are of opposite sign

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