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抛物线y=x2-6x+5的顶点坐标为( ) A.(3,-4) B.(3,4) C...
抛物线y=x2-6x+5的顶点坐标为( )
A.(3,-4)
B.(3,4)
C.(-3,-4)
D.(-3,4)
考点分析:
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