
7. (20 pt., 5 pt. each) For each of the following functions, determine whether the function is . Injective (one-to-one) Surjective (onto) Bijective. a. b. c. d” f: z → z such that f(x) = 12 f: Z Z such that f(x)-|x/21 f: Z+ → Z+ such that f(x) = x + 1. f: Z × Z → Z such that f(x, y) = χ + y Show transcribed image text
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