位置:首页 > 题库频道 > 学历类 > 升学考试 > 高中(高考) > 数学(文科) > 高中数学代数与函数一函数练习题931

已知 http://picflow.koolearn.com/upload/papers/20140823/20140823213554038524.png,则函数 http://picflow.koolearn.com/upload/papers/20140823/20140823213554116882.png的零点个数为  (    )

发布时间:2021-08-04

A.1

B.2

C.3

D.4

试卷相关题目

  • 1已知函数 http://picflow.koolearn.com/upload/papers/20140823/201408232215166471437.png,且关于 http://picflow.koolearn.com/upload/papers/20140823/20140823221516740266.png的方程 http://picflow.koolearn.com/upload/papers/20140823/20140823221517115691.png有且只有一个实根,则实数 http://picflow.koolearn.com/upload/papers/20140823/20140823221517224283.png的范围是(  )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823221517240550.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823221517255459.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823221517271479.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823221517302543.png

    开始考试点击查看答案
  • 2函数 http://picflow.koolearn.com/upload/papers/20140823/20140823232121456659.png的图象关于(  )

    A.y轴对称

    B.直线y=-x对称

    C.坐标原点对称

    D.直线y=x对称

    开始考试点击查看答案
  • 3设f http://picflow.koolearn.com/upload/papers/20140823/20140823231000671195.png(x)=∣x-1∣,f http://picflow.koolearn.com/upload/papers/20140823/20140823231000702705.png,函数g(x)是这样定义的:当f http://picflow.koolearn.com/upload/papers/20140823/20140823231000718582.png时,g(x)= f http://picflow.koolearn.com/upload/papers/20140823/20140823231000671195.png(x),当f http://picflow.koolearn.com/upload/papers/20140823/20140823231000671195.png(x)<f http://picflow.koolearn.com/upload/papers/20140823/20140823231000796432.png时,g(x)= f http://picflow.koolearn.com/upload/papers/20140823/20140823231000796432.png,若方程g(x)=a有四个不同的实数解,则实数a的取值范围是(    )

    A.a<4

    B.0

    C.0

    D.3开始考试点击查看答案

  • 4函数 http://picflow.koolearn.com/upload/papers/20140823/20140823222258501622.png的图象如图,其中 a、 b为常数,则下列结论正确的是(   ) http://picflow.koolearn.com/upload/papers/20140823/201408232222585481105.png

    A.a>1,b<0

    B.a>1,b>0

    C.00

    D.0开始考试点击查看答案

  • 5函数 http://picflow.koolearn.com/upload/papers/20140823/20140823214540989447.png的定义域为开区间 http://picflow.koolearn.com/upload/papers/20140823/20140823214541005476.png,导函数 http://picflow.koolearn.com/upload/papers/20140823/20140823214541036466.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823214541005476.png内的图象如图所示,则函数 http://picflow.koolearn.com/upload/papers/20140823/20140823214540989447.png在开区间 http://picflow.koolearn.com/upload/papers/20140823/20140823214541005476.png内有极小值点 (   ) http://picflow.koolearn.com/upload/papers/20140823/201408232145410982045.jpg

    A.1个

    B.2个

    C.3个

    D.4个

    开始考试点击查看答案
  • 6若函数 http://picflow.koolearn.com/upload/papers/20140823/201408232326104781065.png在区间 http://picflow.koolearn.com/upload/papers/20140823/20140823232610493484.png内单调递减,则 http://picflow.koolearn.com/upload/papers/20140823/20140823232610509277.png的取值范围是 (    )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823232610540497.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823232610556514.png

    C.[1,3)

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823232610571376.png

    开始考试点击查看答案
  • 7已知ω>0, http://picflow.koolearn.com/upload/papers/20140823/20140823215308008538.png,直线 http://picflow.koolearn.com/upload/papers/20140823/20140823215308055500.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823215308086552.png是函数f(x)=sin(ωx+φ)图像的两条相邻的对称轴,则φ=

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823215308117394.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823215308133414.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823215308273419.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823215308398473.png

    开始考试点击查看答案
  • 8http://picflow.koolearn.com/upload/papers/20140823/20140823223533293564.png的图象的横坐标伸长为原来的3倍,纵坐标缩短为原来的 http://picflow.koolearn.com/upload/papers/20140823/20140823223533324327.png,则所得函数的解析式为(    )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823223533340647.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823223533371741.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823223533387727.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823223533402720.png

    开始考试点击查看答案
  • 9已知函数 http://picflow.koolearn.com/upload/papers/20140823/20140823222529619686.png的图像一部分如下方左图,则下方右图的函数图像所对应的解析式为 http://picflow.koolearn.com/upload/papers/20140823/201408232225296509000.png 

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823222529681762.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823222529712670.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823222529728724.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823222529743736.png

    开始考试点击查看答案
  • 10如图(1)是反映某条公共汽车线路收支差额(即营运所得票价收入与付出成本 的差) http://picflow.koolearn.com/upload/papers/20140823/20140823230627075309.png与乘客量 http://picflow.koolearn.com/upload/papers/20140823/20140823230627091275.png之间关系的图象.由于目前该条公交线路亏损,公司有关人员提出了 两种调整的建议,如图(2)(3)所示. http://picflow.koolearn.com/upload/papers/20140823/201408232306271224644.png 给出下说法: ①图(2)的建议是:提高成本,并提高票价; ②图(2)的建议是:降低成本,并保持票价不变; ③图(3)的建议是:提高票价,并保持成本不变; ④图(3)的建议是:提高票价,并降低成本.其中所有说法正确的序号是(     )

    A.① ③

    B.①④

    C.② ③

    D.②④

    开始考试点击查看答案
返回顶部