(C)x=時(shí)的函數(shù)值相等 (D)x=-時(shí)的函數(shù)值相等 查看更多

 

題目列表(包括答案和解析)

已知二次函數(shù)y=2x2+9x+34,當(dāng)自變量x取兩個(gè)不同的值x1、x2時(shí),函數(shù)值相等,則當(dāng)自變量x取x1+x2時(shí)的函數(shù)值與(   )
A.x=1時(shí)的函數(shù)值相等     B.x=0時(shí)的函數(shù)值相等
C.x=時(shí)的函數(shù)值相等D.x=-時(shí)的函數(shù)值相等

查看答案和解析>>

已知二次函數(shù)y=2x2+9x+34,當(dāng)自變量x取兩個(gè)不同的值x1、x2時(shí),函數(shù)值相等,則當(dāng)自變量xx1x2 時(shí)的函數(shù)值與(    )

A.x=1時(shí)的函數(shù)值相等    B.x=0時(shí)的函數(shù)值相等

C.x時(shí)的函數(shù)值相等   D.x=-時(shí)的函數(shù)值相等

 

查看答案和解析>>

已知二次函數(shù)y=2x2+9x+34,當(dāng)自變量x取兩個(gè)不同的值x1、x2時(shí),函數(shù)值相等,則當(dāng)自變量xx1x2 時(shí)的函數(shù)值與(    )

A.x=1時(shí)的函數(shù)值相等    B.x=0時(shí)的函數(shù)值相等

C.x時(shí)的函數(shù)值相等   D.x=-時(shí)的函數(shù)值相等

 

查看答案和解析>>

已知二次函數(shù)y=2x2+9x+34,當(dāng)自變量x取兩個(gè)不同的值x1、x2時(shí),函數(shù)值相等,則當(dāng)自變量xx1x2時(shí)的函數(shù)值與(   )

A.x=1時(shí)的函數(shù)值相等B.x=0時(shí)的函數(shù)值相等
C.x時(shí)的函數(shù)值相等D.x=-時(shí)的函數(shù)值相等

查看答案和解析>>

已知二次函數(shù)y=2x2+9x+34,當(dāng)自變量x取兩個(gè)不同的值x1、x2時(shí),函數(shù)值相等,則當(dāng)自變量x取x1+x2時(shí)的函數(shù)值與(   )

A.x=1時(shí)的函數(shù)值相等     B.x=0時(shí)的函數(shù)值相等
C.x=時(shí)的函數(shù)值相等D.x=-時(shí)的函數(shù)值相等

查看答案和解析>>


同步練習(xí)冊(cè)答案