Question: please show steps? Determine whether each of these function from Z to Z is bijective. b) f(x) = (x + 1)/(x + 2) b) f(x)

please show steps? Determine whether each of these function from Z

please show steps?

Determine whether each of these function from Z to Z is bijective. b) f(x) = (x + 1)/(x + 2) b) f(x) = [x/2] c) f(x) = -3x + 4 d) f(x) = -3x^2 + 7

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