Welcome to Bytelearn!

Let’s check out your problem:

Each answer choice below represents a relation by a set of ordered pairs. In which of the answer choices is the relation a function? Select all that apply:$\newline$\{ ( $4$ , $9$ ) , ( $0$ , \- $2$ ) , ( $0$ , $2$ ) , ( $5$ , $4$ ) \}$\newline$\{ ( $5$ , \- $5$ ) , ( $5$ , \- $4$ ) , ( $7$ , \- $2$ ) , ( $3$ , $8$ ) \}$\newline$\{ ( $4$ , $3$ ) , ( $8$ , $0$ ) , ( $5$ , $2$ ) , ( \- $5$ , $0$ ) \}$\newline$\{ ( $6$ , $9$ ) , ( $9$ , \- $4$ ) , ( $6$ , $1$ ) , ( \- $5$ , $11$ ) \}$\newline$\{ ( $4$ , $12$ ) , ( $2$ , $6$ ) , ( \- $5$ , $6$ ) , ( $3$ , \- $2$ ) \}