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(2003•海淀区)已知二次函数y=ax2+bx+c的图象如图所示,下列结论中,...
(2003•海淀区)已知二次函数y=ax
2+bx+c的图象如图所示,下列结论中,正确的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232403697792667/SYS201310212324036977926020_ST/images0.png)
A.a>0,b<0,c>0
B.a<0,b<0,c>0
C.a<0,b>0,c<0
D.a<0,b>0,c>0
考点分析:
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