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A.10x-1 B.1-10x C.1-10-x D.10-x-1
(A)10x-1
(B)1-10x
(C)1-10-x
(D)10-x-1
A.f(x)=-3x-1 B.f(x)=3x-1 C.f(x)=-3-x+1 D.f(x)=3-x+1