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(2002•曲靖)已知二次函数y=ax2+bx+c(a≠0)的图象如下图所示,请...
(2002•曲靖)已知二次函数y=ax
2+bx+c(a≠0)的图象如下图所示,请你在下图中画出直线y=ax+b与双曲线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232530354199859/SYS201310212325303541998010_ST/0.png)
在同一坐标系中的大致图象.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232530354199859/SYS201310212325303541998010_ST/images1.png)
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(2008•枣庄)已知二次函数y
1=ax
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(2002•河北)如图,二次函数y=x
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(2002•济南)抛物线y=ax
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≤a≤1
B.
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≤a≤2
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≤a≤1
D.
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≤a≤2
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(2002•武汉)为了备战世界杯,中国足球队在某次训练中,一队员在距离球门12m处的挑射正好射中了2.4m高的球门横梁,若足球运行的路线是抛物线y=ax
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A.①③
B.①④
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(2002•福州)已知:二次函数y=x
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),AB=|x
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2|,若S
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C.b
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D.b
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