D-7. If y = - 2x2 - 6x + 9, then (A) maximum value of y is -11 and it occurs at x = 2 (B) minimum value of y is -11 and it occurs at x = 2 (C) maximum value of y is 13.5 and it occurs at x = -1.5 (D) minimum value of y is 13.5 and it occurs at x = -1.5

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( vec{A} ) ( cdots N_{1}^{prime} frac{N}{2} sum_{D}^{1} sum_{i}^{1} ) ( vec{omega} ) the sit ( underbrace{operatorname{Nug}_{p}left{F_{k}right.}^{+}=1^{circ} ) Whe 2 the " Nive ( frac{1}{G} ) "

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