Question: The picture is the question Consider the function f : R - Z defined by f(x) = [x , the least integer greater than or

The picture is the question

Consider the function f : R - Z defined by f(x) = [x , the least integer greater than or equal to r. For example, f(-7) = -3 and f(3.1) = 4. (a) Is f injective? (b) Is f surjective? (c) Is f bijective

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