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当b>0时,一次函数y=ax+b与二次函数y=ax2+bx+c在同一坐标内的图象...
当b>0时,一次函数y=ax+b与二次函数y=ax
2+bx+c在同一坐标内的图象大致是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161710122785922/SYS201310221617101227859009_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161710122785922/SYS201310221617101227859009_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161710122785922/SYS201310221617101227859009_ST/images2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022161710122785922/SYS201310221617101227859009_ST/images3.png)
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A.
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B.
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D.
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