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在平面直角坐标系中,如图所示的函数图象是由函数y=-(x-2)2+2(x≥0)的图象C1和图象C2组成中心对称图形,对称中心为点(0,-2),已知不重合的两点A、B分别在图象C1和C2上,点A、B的...
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教案备课库《2018—2019学年度上学期九年级第四次月考数学试题》真题及答案
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①②③
①③②
②③①
②①③
1在平面直角坐标系中作出函数y=-x2-2x+3的图象2观察图象写出它的开口方向对称轴及顶点坐标.
在同一平面直角坐标系中函数y=gx的图象与y=ex的图象关于直线y=x对称而函数y=fx的图象与y=
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在如图所示的平面直角坐标系中作出函数y=的图象并根据图象回答下列问题1当x=-2时求y的值2当2<y
如图所示在平面直角坐标系中二次函数y=ax2+bx+c的图象顶点为
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幂函数y=x-1及直线y=xy=1x=1将平面直角坐标系的第一象限分成八个卦限:①②③④⑤⑥⑦⑧如图
④⑦
④⑧
③⑧
①⑤
已知正比例函数y=x请在平面直角坐标系中画出这个函数的图象.
在同一平面直角坐标系中作出函数y=﹣2x与y=2x+4的图象.
在同一平面直角坐标系中函数y=fx和y=gx的图象关于直线y=x对称现将y=gx的图象沿x轴向左平移
同一直角坐标系中一次函数y1=k1x+b与正比例函数y2=k2x的图象如图所示则满足y1≥y2的x取
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⑧,③
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一次函数y=kx+bk≠0在平面直角坐标系中的图象如图所示则k和b的取值范围是
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在平面直角坐标系中已知一次函数y=kx+b的图象大致如图所示则下列结论正确的是
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在平面直角坐标系xOy中若直线y=2a与函数y=|x-a|-1的图象只有一个交点则实数a的值为.
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