Look at this set of ordered pairs: (12, 5) (12, –8) (–15, 5) (8, 5) Is this relation a function? Choices: (A)yes (B)no

Check x-values: Check the x-values of the ordered pairs: (12, 5), (12, –8), (–15, 5), (8, 5). x-values: 12, 12, –15, 8.Check for repetition: See if any x-value is repeated. The x-value 12 is repeated.Determine if function: Determine if the relation is a function. A function must have only one y-value for each x-value. Since the x-value 12 has two different y-values (5 and –8), it's not a function.

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Look at this set of ordered pairs: $\newline$ $(12, 5)$ $\newline$ $(12, -8)$ $\newline$ $(-15, 5)$ $\newline$ $(8, 5)$ $\newline$ Is this relation a function? $\newline$ Choices: $\newline$ (A) yes $\newline$ (B) no

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Q. Look at this set of ordered pairs:

\newline

(12, 5)

\newline

(12, -8)

\newline

(-15, 5)

\newline

(8, 5)

\newline

Is this relation a function?

\newline

Choices:

\newline

(A) yes

\newline

(B) no

Check $x$ -values: Check the $x$ -values of the ordered pairs: $(12, 5)$ , $(12, –8)$ , $(–15, 5)$ , $(8, 5)$ . $\newline$ $x$ -values: $12$ , $12$ , $–15$ , $x$ $0$ .
Check for repetition: See if any $x$ -value is repeated. $\newline$ The $x$ -value $12$ is repeated.
Determine if function: Determine if the relation is a function. $\newline$ A function must have only one $y$ -value for each $x$ -value. $\newline$ Since the $x$ -value $12$ has two different $y$ -values ( $5$ and $–8$ ), it's not a function.