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[单选题]
直线y=2x-6与y轴的交点坐标为(),与x轴的交点坐标是
A.(0,-6)(3 ,0)
B.(0, 3)( -6 ,0)
C.( 0, 6)(-3 ,0)
D.( 0, -6)(-3 , 0)
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A、(0,-6)(3 ,0)
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.(0,-6)(3 ,0)
B.(0, 3)( -6 ,0)
C.( 0, 6)(-3 ,0)
D.( 0, -6)(-3 , 0)
A、(0,-6)(3 ,0)
曲线y=x^2+1与直线y=2x交点坐标为()
A.(1,2)
B.(-1,2)
C.(2,4)
D.(1, -√2)
已知直线在x轴上的截距为 l,在y轴上的截距为l,又抛物线y=x2+bx+c的顶点坐
标为(2,-8).求直线和抛物线两个交点横坐标的平方和.
设y=f(x)=xn在点(1,1)处的切线与x轴的交点为,则
=().