Question: onsider the function that assigns each positive integer to its FIRST (leading) digit. (For example, the positive integer 517 gets assigned to 5). In Blank

onsider the function that assigns each positive integer to its FIRST (leading) digit. (For example, the positive integer 517 gets assigned to 5). In Blank 1: What is the domain of this function? In Blank 2: What is the range of this function? (note I am not asking for the co-domain here) Please use either the roster method or set-builder notation for your response. In Blank 3: Is this function injective? (yes or no)

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