已知函數(shù)經(jīng)過點(diǎn)(0,4).其反函數(shù)的圖象經(jīng)過點(diǎn)(7,1).則在定義域上是( ) A.奇函數(shù) B.偶函數(shù) C.增函數(shù) D.減函數(shù) 查看更多

 

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已知函數(shù)f(x)=ax+k,它的圖像經(jīng)過點(diǎn)(1,7),又知其反函數(shù)的圖像經(jīng)過點(diǎn)

(4,0),則函數(shù)f(x)的表達(dá)式是                              (    )

(A)f(x)=2x+5  (B)f(x)=5x+3  (C)f(x)=3x+4    (D)f(x)=4x+3

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已知函數(shù)f(x)是R上的減函數(shù),其圖象經(jīng)過點(diǎn)A(-4,1)和B(0,-1),函數(shù)f(x)的反函數(shù)是f-1(x),則f-1(1)的值為________,不等式|f(x-2)|<1的解集為________

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已知函數(shù)f(x)是R上的減函數(shù),其圖象經(jīng)過點(diǎn)A(-4,1)和B(0,-1),函數(shù)f(x)的反函數(shù)是f-1(x),則f-1(1)的值為________,不等式|f(x-2)|<1的解集為________

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已知函數(shù)f(x)是R上的減函數(shù),其圖象經(jīng)過點(diǎn)A(―4,1)和B(0,-1),函數(shù)f(x)的反函數(shù)是f-1(x),則f-1(1)的值為________,不等式|f(x-2)|<1的解集為_______

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已知f(x)是定義在(-∞,+∞)上的函數(shù),其圖象經(jīng)過A(-4,1),B(0,-1)兩點(diǎn),f(x)的反函數(shù)是f-1(x),則f-1(1)的值是_________;不等式|f(x-2)|<1的解集是_________.

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