如图,一次函数y=kx+b图象与x轴的交点坐标是(2,0),则下列说法:①y随x的增大而减小;②b>0;③关于x的方程kx+b=0的解为x=2.其中说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/997bc142-e966-4f37-a6d6-ca8957a595f3.png?resizew=141)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/997bc142-e966-4f37-a6d6-ca8957a595f3.png?resizew=141)
A.①和② | B.①和③ | C.②和③ | D.①②③都正确 |
更新时间:2020-11-29 11:39:00
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名校
【推荐1】已知一次函数
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【推荐1】一次函数与
的图象如图,则下列结论:
①;
②;
③关于x的方程的解是
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④当时,
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