Look at this set of ordered pairs: (12, 8) (12, 9) (–5, 9) Is this relation a function? Choices: (A)yes (B)no

Look at x-values: Look at the x-values in the ordered pairs. Ordered pairs: (12, 8), (12, 9), (–5, 9) x-values: 12, 12, –5Check for repetition: Check if any x-value is repeated. x-values: 12, 12, –5 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 (8 and 9), it's not a function.

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Look at this set of ordered pairs: $\newline$ $(12, 8)$ $\newline$ $(12, 9)$ $\newline$ $(-5, 9)$ $\newline$ 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, 8)

\newline

(12, 9)

\newline

(-5, 9)

\newline

Is this relation a function?

\newline

Choices:

\newline

(A) yes

\newline

(B) no

Look at $x$ -values: Look at the $x$ -values in the ordered pairs. $\newline$ Ordered pairs: $(12, 8)$ , $(12, 9)$ , $(-5, 9)$ $\newline$ $x$ -values: $12$ , $12$ , $-5$
Check for repetition: Check if any $x$ -value is repeated. $x$ -values: $12$ , $12$ , $–5$ 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 ( $8$ and $9$ ), it's not a function.