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下列函数关系式中,是二次函数的是A.y=x3-2x2-1B.y=x2C.D.y=x+1
试题详情
下列函数关系式中,是二次函数的是( )
A.y=x
3-2x
2-1
B.y=x
2C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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sEVl/ow6eWIdtSOhGvNOkL+wbga+CcdkuUVgY8gEgkm9w0GTaPvekNGSQ6MGRtZt1QBdljxTnP7w
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jgAAAABJRU5ErkJggg==
)
D.y=x+1
相关试题
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Iisg38GhrKbUImmiJynBCiioHGicoARMe+Mzkqsda/gBxbbwLQAdp5p4ZQEgqGFM99h7uBcAgpIs
gUvUN4oHUWQHZBTotMgjC58aFT3jwwoIK1wITJx/ZseEDkewAurYn/yVFxC5S4kNfgBZ16BVtP5o
jgAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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GX9GZS5VIOpwxZhSRxbXepMastQD9NkC+AFZ16BVrhHa/AAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAIVSURBVGhD7ViLrcMgDGQydmIdlmEURqE2vwJJ
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jgAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAHESURBVGhD7ZeLbcMwDEQ1mXbSOlpGo2gUlrQ+
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GX9GZS5VIOpwxZhSRxbXepMastQD9NkC+AFZ16BVrhHa/AAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAIVSURBVGhD7ViLrcMgDGQydmIdlmEURqE2vwJJ
GgI2UapEeqr6Ggxn++wzwv3ZI/4Mj3sBTUXUKCeECH9SOztlbH/xughZ7aQy8RTGKQSVv9MhWwbI
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jgAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAIVSURBVGhD7ViLrcMgDGQydmIdlmEURqE2vwJJ
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jgAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAHESURBVGhD7ZeLbcMwDEQ1mXbSOlpGo2gUlrQ+
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GX9GZS5VIOpwxZhSRxbXepMastQD9NkC+AFZ16BVrhHa/AAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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jgAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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GX9GZS5VIOpwxZhSRxbXepMastQD9NkC+AFZ16BVrhHa/AAAAABJRU5ErkJggg==
)
D.y=x+1
-
下列函数关系式中,是二次函数的是( )
A.y=x3-2x2-1
B.y=x2
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAAqCAYAAAD8pHgAAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
D.y=x+1