函数
,
的图象如图所示,下列结论:
①两函数图象的交点坐标为
;
②当
时,
;
③直线
分别与两函数图象交于
、
两点,则线段
的长为3;
④当
逐渐增大时,
的值随着
的增大而增大,
的值随着
的增大而减小.
则其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/9/0d9b4c13-5b13-433f-ad72-017d42796c83.png?resizew=255)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727d7abd206ca10046fb740273b01eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4a2201cdbf37f435b2689b15c58dc1.png)
①两函数图象的交点坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f54dd475ff1321041c80738b201c3b6.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1113e9b568fb9ca3286582368e257a.png)
③直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
则其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/9/0d9b4c13-5b13-433f-ad72-017d42796c83.png?resizew=255)
A.①②④ | B.①③④ | C.②④ | D.②③④ |
2021·河北唐山·二模 查看更多[2]
更新时间:2022-03-29 21:49:04
|
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