Look at this set of ordered pairs: (10, 11) (10, 12) (10, –13) (15, 9) Is this relation a function? Choices: (A)yes (B)no

Check x-values: Check the x-values of the ordered pairs: (10, 11), (10, 12), (10, –13), (15, 9). x-values are: 10, 10, 10, 15.Identify repeating x-value: Determine if any x-value repeats. The x-value 10 repeats three times.Determine if function: Decide if the relation is a function based on the definition of a function. A function must have only one y-value for each x-value. Since the x-value 10 has three different y-values, this is not a function.

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Look at this set of ordered pairs: $\newline$ $(10, 11)$ $\newline$ $(10, 12)$ $\newline$ $(10, -13)$ $\newline$ $(15, 9)$ $\newline$ 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

(10, 11)

\newline

(10, 12)

\newline

(10, -13)

\newline

(15, 9)

\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: $(10, 11)$ , $(10, 12)$ , $(10, –13)$ , $(15, 9)$ . $\newline$ $x$ -values are: $10$ , $10$ , $10$ , $x$ $0$ .
Identify repeating $x$ -value: Determine if any $x$ -value repeats. $\newline$ The $x$ -value $10$ repeats three times.
Determine if function: Decide if the relation is a function based on the definition of a function. $\newline$ A function must have only one $y$ -value for each $x$ -value. $\newline$ Since the $x$ -value $10$ has three different $y$ -values, this is not a function.