**Question: Which property guarantees f: X ---> Y is surjective?**- ○ f is injective- ○ the preimage of Y is X- ○ f(X) = Y- ○ X = YThis question pertains to the properties of functions, specifically focusing on the concept of surjectivity. A function \( f: X \to Y \) is surjective if every element in the codomain \( Y \) is the image of at least one element from the domain \( X \). The option that guarantees surjectivity is \( f(X) = Y \). This means that the image of the function \( f \) covers the entire set \( Y \).

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Which property guarantees f:X--->Y is surjective? Of is injective O the preimage of Y is X O f(x)=Y O X=Y

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Recurrence relation

A recurrence relation or recursive relation is an equation that represents a function in terms of the values of its smaller inputs. Every recurrence relation T(n) is a recursive function of integer n and consists of a base case and a recursive case.

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