-
(2007•庆阳)下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEhSURBVFhH5VbbDcQgDMtk7JR1WIZRGCWX0EID
V13bD8zpDqlSpT6MHceBZOGihdjy4+A5SiASsotTJ/Rk5kk4RMkFUu91Ax5/LnjOO/BGODES3Iuc
GC37wXhBzR313Xghbg6wNbfmQ4jkGISaAcHg6riu7kDmWWJAut2Y1oAZevxRzf1Pru7vzgug7O9b
omICk2aIQe/Ku0yevrczNzMEidnylzWFMavJXnrwA/BVnf3zFiLObOP3veEsgVwAILg35kmZBzLp
EbAuXk1ym7Nt5KkJh7k/ZUdaCpIW9tX5U5DRCdcNNTM0Ml4ruJqZYwJnewFXudnOcQtkT1w7CA3e
dQ0Y3Fr3LBlrdwGnGph5n0z/C352mJiS2vd+CjTclzF/ARxp+QH0KMIKAAAAAElFTkSuQmCC
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
(2007•庆阳)下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEhSURBVFhH5VbbDcQgDMtk7JR1WIZRGCWX0EID
V13bD8zpDqlSpT6MHceBZOGihdjy4+A5SiASsotTJ/Rk5kk4RMkFUu91Ax5/LnjOO/BGODES3Iuc
GC37wXhBzR313Xghbg6wNbfmQ4jkGISaAcHg6riu7kDmWWJAut2Y1oAZevxRzf1Pru7vzgug7O9b
omICk2aIQe/Ku0yevrczNzMEidnylzWFMavJXnrwA/BVnf3zFiLObOP3veEsgVwAILg35kmZBzLp
EbAuXk1ym7Nt5KkJh7k/ZUdaCpIW9tX5U5DRCdcNNTM0Ml4ruJqZYwJnewFXudnOcQtkT1w7CA3e
dQ0Y3Fr3LBlrdwGnGph5n0z/C352mJiS2vd+CjTclzF/ARxp+QH0KMIKAAAAAElFTkSuQmCC
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
下列关于二次函数的说法错误的是( )
A. 抛物线y=﹣2x2+3x+1的对称轴是直线
,
B. 抛物线y=x2﹣2x﹣3,点A(3,0)不在它的图象上
C. 二次函数y=(x+2)2﹣2的顶点坐标是(﹣2,﹣2)
D. 函数y=2x2+4x﹣3的图象的最低点在(﹣1,﹣5)
-
(2007•庆阳)下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEhSURBVFhH5VbbDcQgDMtk7JR1WIZRGCWX0EID
V13bD8zpDqlSpT6MHceBZOGihdjy4+A5SiASsotTJ/Rk5kk4RMkFUu91Ax5/LnjOO/BGODES3Iuc
GC37wXhBzR313Xghbg6wNbfmQ4jkGISaAcHg6riu7kDmWWJAut2Y1oAZevxRzf1Pru7vzgug7O9b
omICk2aIQe/Ku0yevrczNzMEidnylzWFMavJXnrwA/BVnf3zFiLObOP3veEsgVwAILg35kmZBzLp
EbAuXk1ym7Nt5KkJh7k/ZUdaCpIW9tX5U5DRCdcNNTM0Ml4ruJqZYwJnewFXudnOcQtkT1w7CA3e
dQ0Y3Fr3LBlrdwGnGph5n0z/C352mJiS2vd+CjTclzF/ARxp+QH0KMIKAAAAAElFTkSuQmCC
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
下列关于二次函数的说法错误的是( )
A. 抛物线y=﹣2x2+3x+1的对称轴是直线
,
B. 抛物线y=x2﹣2x﹣3,点A(3,0)不在它的图象上
C. 二次函数y=(x+2)2﹣2的顶点坐标是(﹣2,﹣2)
D. 函数y=2x2+4x﹣3的图象的最低点在(﹣1,﹣5)
-
下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAD7SURBVFhH7ZbLDcMwCEA9mXdiHZbxKIxCwb8g
WqW5GA7tk6iqROorPyeFE/nLz0HItRQuGtDmxcFheWOoyLS+yx+w/rNyoikeNIiUWxpEl32gGSf0
3DAHr+LViDi5QFi57AEMlvu+B8qJsUZOu2a6Dhi348pjuf2Rb/GU2J47yi6NOwbtVJ5iZq7DUBlJ
xSD6GHbZ+w7eiH1f72Lx6d6Kfr9/KnoCBZTasuVNMq9FSz8vBNDlWnLdwf3IkyH0O3kCKb857Nfk
HzFHn3CGMdAZchlmwJaRuZQbdIsSyt5gbVDCU+2SBcv3u5uLtV0xA9dJXLVflr/zlyfA/AIcafkB
YvY7WgAAAABJRU5ErkJggg==
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAD7SURBVFhH7ZbLDcMwCEA9mXdiHZbxKIxCwb8g
WqW5GA7tk6iqROorPyeFE/nLz0HItRQuGtDmxcFheWOoyLS+yx+w/rNyoikeNIiUWxpEl32gGSf0
3DAHr+LViDi5QFi57AEMlvu+B8qJsUZOu2a6Dhi348pjuf2Rb/GU2J47yi6NOwbtVJ5iZq7DUBlJ
xSD6GHbZ+w7eiH1f72Lx6d6Kfr9/KnoCBZTasuVNMq9FSz8vBNDlWnLdwf3IkyH0O3kCKb857Nfk
HzFHn3CGMdAZchlmwJaRuZQbdIsSyt5gbVDCU+2SBcv3u5uLtV0xA9dJXLVflr/zlyfA/AIcafkB
YvY7WgAAAABJRU5ErkJggg==
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAD7SURBVFhH7ZbLDcMwCEA9mXdiHZbxKIxCwb8g
WqW5GA7tk6iqROorPyeFE/nLz0HItRQuGtDmxcFheWOoyLS+yx+w/rNyoikeNIiUWxpEl32gGSf0
3DAHr+LViDi5QFi57AEMlvu+B8qJsUZOu2a6Dhi348pjuf2Rb/GU2J47yi6NOwbtVJ5iZq7DUBlJ
xSD6GHbZ+w7eiH1f72Lx6d6Kfr9/KnoCBZTasuVNMq9FSz8vBNDlWnLdwf3IkyH0O3kCKb857Nfk
HzFHn3CGMdAZchlmwJaRuZQbdIsSyt5gbVDCU+2SBcv3u5uLtV0xA9dJXLVflr/zlyfA/AIcafkB
YvY7WgAAAABJRU5ErkJggg==
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEhSURBVFhH5VbbDcQgDMtk7JR1WIZRGCWX0EID
V13bD8zpDqlSpT6MHceBZOGihdjy4+A5SiASsotTJ/Rk5kk4RMkFUu91Ax5/LnjOO/BGODES3Iuc
GC37wXhBzR313Xghbg6wNbfmQ4jkGISaAcHg6riu7kDmWWJAut2Y1oAZevxRzf1Pru7vzgug7O9b
omICk2aIQe/Ku0yevrczNzMEidnylzWFMavJXnrwA/BVnf3zFiLObOP3veEsgVwAILg35kmZBzLp
EbAuXk1ym7Nt5KkJh7k/ZUdaCpIW9tX5U5DRCdcNNTM0Ml4ruJqZYwJnewFXudnOcQtkT1w7CA3e
dQ0Y3Fr3LBlrdwGnGph5n0z/C352mJiS2vd+CjTclzF/ARxp+QH0KMIKAAAAAElFTkSuQmCC
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)
-
下列关于二次函数的说法错误的是( )
A.抛物线y=-2x2+3x+1的对称轴是直线![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEhSURBVFhH5VbbDcQgDMtk7JR1WIZRGCWX0EID
V13bD8zpDqlSpT6MHceBZOGihdjy4+A5SiASsotTJ/Rk5kk4RMkFUu91Ax5/LnjOO/BGODES3Iuc
GC37wXhBzR313Xghbg6wNbfmQ4jkGISaAcHg6riu7kDmWWJAut2Y1oAZevxRzf1Pru7vzgug7O9b
omICk2aIQe/Ku0yevrczNzMEidnylzWFMavJXnrwA/BVnf3zFiLObOP3veEsgVwAILg35kmZBzLp
EbAuXk1ym7Nt5KkJh7k/ZUdaCpIW9tX5U5DRCdcNNTM0Ml4ruJqZYwJnewFXudnOcQtkT1w7CA3e
dQ0Y3Fr3LBlrdwGnGph5n0z/C352mJiS2vd+CjTclzF/ARxp+QH0KMIKAAAAAElFTkSuQmCC
)
B.抛物线y=x2-2x-3,点A(3,0)不在它的图象上
C.二次函数y=(x+2)2-2的顶点坐标是(-2,-2)
D.函数y=2x2+4x-3的图象的最低点在(-1,-5)