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已知二次函数y=ax2+bx+c的图象如图所示,则点(ac,bc)在( ) A....
已知二次函数y=ax
2+bx+c的图象如图所示,则点(ac,bc)在( )
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A.第一象限
B.第二象限
C.第三象限
D.第四象限
考点分析:
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