2019届九年级数学上册第六章反比例函数6.2反比例函数的图象与性质(第1课时)课件(新版)北师大版.ppt

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2.反比例函数的图象与性质,第一课时,1.反比例函数 (k为常数,k0)的图象是 . 2.反比例函数 ,当k0时,两支曲线分别位于第 、 象限内,当k0时,两支曲线分别位于第 、 象限内. 3.反比例函数的图象是以 为对称中心的中心对称图形.反比例函数的图象还是轴对称图形,它的对称轴是 .,两支曲线,一,三,二,四,原点,直线y=x,1,2,3,4,5,6,1.反比例函数 的图象位于平面直角坐标系的 ( ) A.第一、三象限 B.第二、四象限 C.第一、二象限 D.第三、四象限,答案,1,2,3,4,5,6,2.若点A(3,-4),B(-2,m)在同一个反比例函数的图象上,则m的值为( ) A.6 B.-6 C.12 D.-12,答案,1,2,3,4,5,6,3.当x0时,下列图象表示函数 的图象的是( ),答案,1,2,3,4,5,6,4.反比例函数 的图象有一支位于第一象限,则常数a的取值范围是 .,答案,1,2,3,4,5,6,5.如图,反比例函数 图象的对称轴的条数是 .,答案,1,2,3,4,5,6,6.已知一个正比例函数的图象与一个反比例函数的图象的一个交点坐标为(1,3),则另一个交点坐标是 .,答案,

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