摘要：009]解:(1)①轴.轴. 四边形为矩形． 轴.轴. 四边形为矩形． 轴.轴. 四边形均为矩形．············ 1分 . . ． ． . . ．······························································································ 2分 ②由(1)知． ． ．············································································································ 4分 . ．································································································ 5分 ． ．············································································································· 6分 轴. 四边形是平行四边形． ．············································································································· 7分 同理． ．············································································································· 8分 (2)与仍然相等．························································································· 9分 . . 又. ．································· 10分 ． ． . ． ． ．············································································································ 11分 轴. 四边形是平行四边形． ． 同理． ．·········································································································· 12分
网址：http://m.1010jiajiao.com/timu_id_2583157[举报]
如图，是二次函数y=ax2+bx+c图象的一部分，其对称轴为直线x=1，若其与x轴一交点为A（3，0），则由图象可知，方程ax2+bx+c=0的另一个解是（ ）
已知二次函数y=x2-6x+5．
（1）请写出该函数的对称轴，顶点坐标；
（2）函数图象与x轴交点坐标为，与y轴的交点坐标为；
（3）当时y＞0，时y随x的增大而增大；
（4）写出不等式x2-6x+5＜0的解集． 查看习题详情和答案>>
（1）请写出该函数的对称轴，顶点坐标；
（2）函数图象与x轴交点坐标为，与y轴的交点坐标为；
（3）当时y＞0，时y随x的增大而增大；
（4）写出不等式x2-6x+5＜0的解集． 查看习题详情和答案>>
如图，直线y=k和双曲线y=
相交于点P，过P点作PA0垂直x轴，垂足A0，由
可解得x=1，即A0横坐标为1．x轴上的点A0、A1、A2、…．An的横坐标是连续整数．过点A1、A2、…、An分别作x轴的垂线，与双曲线y=
（x＞0
）及直线y=k分别交于点B1、B2、…、Bn、C1、C2、…．Cn．
（1）求
的值；
（2）求
的值；
（3）试猜想
的值（直接写答案）．
查看习题详情和答案>>
| k |
| x |
|
| k |
| x |
）及直线y=k分别交于点B1、B2、…、Bn、C1、C2、…．Cn．（1）求
| C1B1 |
| A1B1 |
（2）求
| C2B2 |
| A2B2 |
（3）试猜想
| CnBn |
| AnBn |
在的y轴上，点A与点D重合．