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下列每组函数是同一函数的是 (    )

发布时间:2021-08-04

A.http://picflow.koolearn.com/upload/2010-12/14/2ad04c1e-1387-42ce-810a-7302fe42cb79/paper.files/image015.gif

B.http://picflow.koolearn.com/upload/2010-12/14/2ad04c1e-1387-42ce-810a-7302fe42cb79/paper.files/image016.gif

C.http://picflow.koolearn.com/upload/2010-12/14/2ad04c1e-1387-42ce-810a-7302fe42cb79/paper.files/image017.gif

D.http://picflow.koolearn.com/upload/2010-12/14/2ad04c1e-1387-42ce-810a-7302fe42cb79/paper.files/image018.gif

试卷相关题目

  • 1函数y=ax+2(a>0,且a≠1)的图象经过的定点坐标是

    A.(http://picflow.koolearn.com/upload/2010-12/27/bff025a8-7a8b-4b43-bc28-b4ec8e784573/paper.files/image005.gif0,1)

    B.(2,1)

    C.(-2,0)

    D.(-2,1)

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  • 2下列各组函数中,表示同一函数的是(   )

    A.http://picflow.koolearn.com/upload/2010-10/26/30627a68-ee15-4d96-bde4-57569948ffbb/paper.files/image004.gif

    B.http://picflow.koolearn.com/upload/2010-10/26/30627a68-ee15-4d96-bde4-57569948ffbb/paper.files/image005.gif

    C.http://picflow.koolearn.com/upload/2010-10/26/30627a68-ee15-4d96-bde4-57569948ffbb/paper.files/image006.gif

    D.http://picflow.koolearn.com/upload/2010-10/26/30627a68-ee15-4d96-bde4-57569948ffbb/paper.files/image007.gif

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  • 3下列函数中,与函数 http://picflow.koolearn.com/upload/2010-07/10/45a3e7ac-d682-4473-9763-864acb578aab/paper.files/image008.gif相同的是

    A.http://picflow.koolearn.com/upload/2010-07/10/45a3e7ac-d682-4473-9763-864acb578aab/paper.files/image009.gif

    B.http://picflow.koolearn.com/upload/2010-07/10/45a3e7ac-d682-4473-9763-864acb578aab/paper.files/image010.gif

    C.http://picflow.koolearn.com/upload/2010-07/10/45a3e7ac-d682-4473-9763-864acb578aab/paper.files/image011.gif

    D.http://picflow.koolearn.com/upload/2010-07/10/45a3e7ac-d682-4473-9763-864acb578aab/paper.files/image012.gif

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  • 4设函数 http://picflow.koolearn.com/upload/2013-01/09/2fa5e2c9-24b4-41d2-b7ef-8d9e9ba310ba/paper.files/image001.png     

    A.http://picflow.koolearn.com/upload/2013-01/09/2fa5e2c9-24b4-41d2-b7ef-8d9e9ba310ba/paper.files/image002.png

    B.http://picflow.koolearn.com/upload/2013-01/09/2fa5e2c9-24b4-41d2-b7ef-8d9e9ba310ba/paper.files/image003.png

    C.http://picflow.koolearn.com/upload/2013-01/09/2fa5e2c9-24b4-41d2-b7ef-8d9e9ba310ba/paper.files/image004.png

    D.2

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  • 5下列结论中正确的个数是(  ) ①当 a<0时, http://picflow.koolearn.com/upload/2010-03/09/eabd15df-8bf6-4647-bfb9-663a619a347a/paper.files/image001.gif= a 3 ② http://picflow.koolearn.com/upload/2010-03/09/eabd15df-8bf6-4647-bfb9-663a619a347a/paper.files/image002.gif=| a| ③函数 y= http://picflow.koolearn.com/upload/2010-03/09/eabd15df-8bf6-4647-bfb9-663a619a347a/paper.files/image003.gif-(3 x-7) 0的定义域是(2, +∞) ④若 http://picflow.koolearn.com/upload/2010-03/09/eabd15df-8bf6-4647-bfb9-663a619a347a/paper.files/image004.gif,则2 a+ b=1

    B.1

    C.2

    D.3

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  • 6已知函数 http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image026.gifhttp://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image027.gif上的偶函数,若对于 http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image028.gif,都有 http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image029.gif,且当 http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image030.gif时, http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image031.gif,则 http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image032.gif的值为(   )

    A.http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image033.gif   

    B.http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image034.gif   

    C.http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image022.gif    

    D.http://picflow.koolearn.com/upload/2010-03/16/5fa2b53f-c01e-4769-9d29-ec4629f38e16/paper.files/image021.gif

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  • 7在直角坐标系中横纵坐标为整数的点称为“格点”,如果函数 http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image059.gif的图像恰好通过 http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image060.gif个格点,则称函数 http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image059.gif为k阶格点函数,下列函数中“一阶格点”函数有 ① http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image061.gif                 ② http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image062.gifhttp://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image063.gif                     ④ http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image064.gif

    A.②③

    B.①③http://picflow.koolearn.com/upload/2010-09/16/3b749462-447e-4f5b-a869-7b84bcadad42/paper.files/image065.gif

    C.①④

    D.②④

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  • 8已知函数 http://picflow.koolearn.com/upload/2013-06/04/3f667a11-4de9-43bb-a360-b631feba7cb2/paper.files/image001.png,则 http://picflow.koolearn.com/upload/2013-06/04/3f667a11-4de9-43bb-a360-b631feba7cb2/paper.files/image002.png(    )

    A.http://picflow.koolearn.com/upload/2013-06/04/3f667a11-4de9-43bb-a360-b631feba7cb2/paper.files/image003.png

    B.http://picflow.koolearn.com/upload/2013-06/04/3f667a11-4de9-43bb-a360-b631feba7cb2/paper.files/image004.png

    C.http://picflow.koolearn.com/upload/2013-06/04/3f667a11-4de9-43bb-a360-b631feba7cb2/paper.files/image005.png

    D.http://picflow.koolearn.com/upload/2013-06/04/3f667a11-4de9-43bb-a360-b631feba7cb2/paper.files/image006.png

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  • 9下列各组中,函数 http://picflow.koolearn.com/upload/2010-07/20/d7accc1e-e823-4ae5-8ec4-5db0ce6e9cfd/paper.files/image002.gifhttp://picflow.koolearn.com/upload/2010-07/20/d7accc1e-e823-4ae5-8ec4-5db0ce6e9cfd/paper.files/image003.gif表示同一函数的一组是 (    )

    A.http://picflow.koolearn.com/upload/2010-07/20/d7accc1e-e823-4ae5-8ec4-5db0ce6e9cfd/paper.files/image004.gif

    B.http://picflow.koolearn.com/upload/2010-07/20/d7accc1e-e823-4ae5-8ec4-5db0ce6e9cfd/paper.files/image005.gif

    C.http://picflow.koolearn.com/upload/2010-07/20/d7accc1e-e823-4ae5-8ec4-5db0ce6e9cfd/paper.files/image006.gif

    D.http://picflow.koolearn.com/upload/2010-07/20/d7accc1e-e823-4ae5-8ec4-5db0ce6e9cfd/paper.files/image007.gif

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  • 10对于函数 f( x),若在其定义域内存在两个实数 a, b( a< b),使当 x∈[ a, b]时, f( x)的值域也是[ a, b],则称函数 f( x)为“科比函数”. http://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image073.jpghttp://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image073.jpg若函数 http://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image074.gif是“科比函数”,则实数 k的取值范围(  )

    A.http://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image075.gif

    B.http://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image076.gif

    C.http://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image077.gif

    D.http://picflow.koolearn.com/upload/2010-11/09/eb9822c0-1a0b-4859-b1c6-f3f7733b9cd4/paper.files/image078.gif

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