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Mathematics 12 Online
OpenStudy (anonymous):

Which of the following is a one-to-one function? a. y=x^2 b. y= [ [2x] ] c. f(x)= { 4x+1; x<-2 x-5; x≥-2 d. f(x)= { 2;0 ≤x <2 3;2 ≤x <4

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