《2022年3.2直线的一般式方程3 .pdf》由会员分享,可在线阅读,更多相关《2022年3.2直线的一般式方程3 .pdf(4页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、名师精编优秀教案3.2.3直线的一般式方程教科书:P107-109 学习目标1灵活的使用直线的各种形式方程并能相互转化;2掌握直线的一般式方程;学习重点和难点1重点:灵活应用直线的各种形式方程;2难点:灵活应用直线的各种形式方程。学习过程一自学、思考、练习(一)问题导引1直线的一般式方程能表示所有的直线方程吗?_2 直线的一般式方程0AxByC中字母 A、B、C 有什么条件吗?_3比较各种形式直线方程直线方程形式限制条件点斜式斜截式两点式截距式一般式(二)知识的应用例 1直线方程0AxByC,A、B、C 满足什么条件时,方程表示的直线(1)平行于在x 轴;(2)平行于 y 轴;(3)与 x 轴
2、重合;(4)与 y 轴重合;(5)与 x 轴 y 轴都相交;(6)直线在两坐标轴上的截距相等;(7)直线过一、二、三象限。例 2根据下列条件,写出直线的方程,并把它写成一般式名师精编优秀教案(1)经过点(8,2),斜率为12;(2)经过点(3,2),(5,4);(3)在 x 轴和 y 轴的截距分别为3,32;(4)经过点(3,0),且与直线250 xy垂直;例 3三角形三个顶点是(4,0),(6,7),(0,3)ABC(1)求 BC 边上高所在的直线的方程;(2)求 BC 边上的中线所在的直线方程;(3)求 BC 边的垂直平分线所在的直线方程。例 4直线l的方程为(1)20axy(1)若l在两
3、坐标轴上截距相等,求a 的值;(2)若l不经过第二象限,求实数a 的取值范围。例 5一条光线从点(6,4)P射出,与轴相交于(2,0)Q,经过 x 轴的反射,求入射光线和反射光线所在的直线方程。文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3
4、U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R
5、3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D
6、6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3
7、G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U
8、6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B
9、5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3名师精编优秀教案yx0ABCP3.2.3 直线的一般式方程自我测试1直
10、线(0,0)bxayab ab的斜率为()(A)ba(B)ba(C)ab(D)ab2若0,0ACBC,那么直线0AxByC不通过()(A)第一象限(B)第二象限(C)第三象限(D)第四象限3平面直角坐标系中,直线320 xy的倾斜角为()(A)6(B)3(C)23(D)564直线1yaxa的图象可能是()5直线(4)yk x必过定点 _;当0ABC时,直线0AxByC必通过定点 _。6一根弹簧,挂4 N 的物体时,长为20 cm,在弹性限度内,所挂物体的重量每增加1 N,弹簧就伸长1.5 cm。则弹簧的长度l(cm)与所挂物体重量G(N)之间关系的方程是_ 7 若直线2(2)(23)20axa
11、aya在 x 轴上的截距为3,则实数 a 的值为 _ 8如图所示,射线 OA,OB 分别与 x 轴的正半轴成045和030角,过点(1,0)P作直线 AB 分别交 OA,OB 于 A、B,当 AB 的中点 C 恰好落在直线12yx上时,求直线AB 的方程。yx0(A)yx0(B)yx0(C)yx0(D)文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6
12、H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G
13、3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6
14、R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5
15、D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U
16、3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9
17、U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10
18、B5D6H4L9 ZY8P2U3G3U3名师精编优秀教案文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H
19、4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3
20、U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R
21、3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D
22、6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3
23、G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3文档编码:CR9U6R3V4B5 HZ10B5D6H4L9 ZY8P2U3G3U3
限制150内