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1、一次函数与几何1.如图，直线 l1的函数解析式为y3x3，且 l1与 x 轴交于点 D，直线 l2经过点 A，B，直线 l1，l2交于点 C.(1)求点 D的坐标；(2)求直线 l2的函数解析式；(3)求ADC 的面积；(4)在直线 l2上存在异于点 C的另一点 P，使得ADP与ADC 的面积相等，请直接写出点 P的坐标2.如图，直线 y2x6 与 x 轴交于点 A，与 y 轴交于点 B，直线 y12x1与 x 轴交于点 C，与 y 轴交于点 D，两直线交于点 E，求SBDE和 S四边形 AODE.3如图，直线 y43x8 分别交 x 轴、y 轴于 A，B两点，线段 AB的垂直平分线分别交 x
2、 轴、y 轴于 C，D两点(1)求点 C的坐标；(2)求直线 CE的解析式；(3)求BCD 的面积精品资料-欢迎下载-欢迎下载 名师归纳-第 1 页，共 4 页 -4.如图，在平面直角坐标系中，点 A(1，0)，B(0，3)，直线 BC交坐标轴于 B，C两点，且 CBA 45.求直线 BC的解析式5.如图，A(0，4)，B(4，0)，D(2，0)，OE AD于点 F，交 AB于点 E，BM OB交 OE的延长线于点 M.(1)求直线 AB和直线 AD的解析式；(2)求点 M的坐标；(3)求点 E，F 的坐标6.如图，正方形 OBAC 中，O(0，0)，A(2，2)，B，C分别在 x 轴、y 轴
3、上，D(0，1)，CE BD交 BD延长线于点 E，求点 E的坐标精品资料-欢迎下载-欢迎下载 名师归纳-第 2 页，共 4 页 -文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7
4、B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5
5、C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7
6、B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5
7、C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7
8、B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5
9、C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U47.如图，在平面直角坐标系中，A(0，1)，B(3，12)，P为 x 轴上一动点，则 PAPB最小时点 P的坐标为 _8.如图，直线 yx4 与坐标轴交于点A，B，点 C(3，m)在直线 AB上，在 y轴上找一点 P，使 PA
10、PC的值最小，求这个最小值及点P的坐标精品资料-欢迎下载-欢迎下载 名师归纳-第 3 页，共 4 页 -文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9
11、S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3
12、 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9
13、S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3
14、 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9
15、S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3
16、 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4答案：1.(1)D(1，0)(2)y 32x6(3)SADC92(4)P(6，3)2.A（-3,0）B（0,6）C（2,0）D（0,1）E（-2,2）SBDE5，S四边形 AODESAOBSBDE954 3.(1)A(6，0)，B(0，8)，中点得 E(3
17、，4)，k1*k2=-1带入 E坐标或勾股定理 AC 2=BC 2（6-n）2=n2+64 得 C(73，0)(2)y 34x74(3)D(0，74)，SBCD12(874)73175244.过点 A作 AD AB，ADAB=10，过点 D作 DE x轴，DEA AOB，DE OA 1，EA OB 3，D(4，1)，直线 BC：y12x3 5.(1)AB：yx4，AD：y2x4(2)由OBM AOD得 BM OD，M(4，2)(3)OM：y12x，联立y12x，yx4，得 E(83，43)；联立y2x4，y12x，得 F(85，45)6.延长 CE交 x 轴于点 F，BOD COF，OD OF
18、 1，F(1，0)，C(0，2)，CF：y2x2，B(2，0)，D(0，1)，BD：y12x1，由y12x1，y2x2，得 E(25，65)7.P(2，0)s=3 5/2 作出点 A关于 x 轴的对称点 A，直线 AB 的解析式为 y=0.5x-1 8.C(3，1)，作点 A关于 y 轴的对称点 A，连接 CA 交 y 轴于 P，此时 PAPC最小值为 CA，A(4，0)，CA：y17x47，P(0，47)，作 CE x轴于 E，CA CE2AE252 精品资料-欢迎下载-欢迎下载 名师归纳-第 4 页，共 4 页 -文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8
19、U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 H
20、H3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8
21、U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 H
22、H3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8
23、U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 H
24、H3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4文档编码:CF9S8T9Y5C4 HH3H2G4I5W3 ZQ7Z7B6P8U4