如圖.拋物線的對(duì)稱軸是直線.且經(jīng)過點(diǎn)(3.0).則的值為 A. 0 B. -1 C. 1 D. 2 查看更多

 

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(2008•仙桃)如圖,拋物線y=ax2+bx+c(a>0)的對(duì)稱軸是直線x=1,且經(jīng)過點(diǎn)P(3,0),則a-b+c的值為( )

A.0
B.-1
C.1
D.2

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(2008•仙桃)如圖,拋物線y=ax2+bx+c(a>0)的對(duì)稱軸是直線x=1,且經(jīng)過點(diǎn)P(3,0),則a-b+c的值為( )

A.0
B.-1
C.1
D.2

查看答案和解析>>

(2008•仙桃)如圖,拋物線y=ax2+bx+c(a>0)的對(duì)稱軸是直線x=1,且經(jīng)過點(diǎn)P(3,0),則a-b+c的值為( )

A.0
B.-1
C.1
D.2

查看答案和解析>>

(2008•仙桃)如圖,拋物線y=ax2+bx+c(a>0)的對(duì)稱軸是直線x=1,且經(jīng)過點(diǎn)P(3,0),則a-b+c的值為( )

A.0
B.-1
C.1
D.2

查看答案和解析>>

(2008•仙桃)如圖,拋物線y=ax2+bx+c(a>0)的對(duì)稱軸是直線x=1,且經(jīng)過點(diǎn)P(3,0),則a-b+c的值為( )

A.0
B.-1
C.1
D.2

查看答案和解析>>


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