Look at this set of ordered pairs: (18, 0) (9, 14) (12, 16) Is this relation a function? Choices: (A)yes (B)no

Define function: Understand the definition of a function. A relation is a function if each input (x-value) has exactly one output (y-value). We need to check if any x-value in the set of ordered pairs repeats with a different y-value. List x-values: List the x-values from the ordered pairs. From the pairs (18, 0), (9, 14), and (12, 16), the x-values are 18, 9, and 12. Check repeats: Check for repeated x-values. The x-values 18, 9, and 12 are all different. There are no repeats, so each x-value is paired with exactly one y-value. Conclude function: Conclude if the relation is a function. Since no x-value is repeated with a different y-value, the relation is a function.

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Look at this set of ordered pairs: $\newline$ $(18, 0)$ $\newline$ $(9, 14)$ $\newline$ $(12, 16)$ $\newline$ 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

(18, 0)

\newline

(9, 14)

\newline

(12, 16)

\newline

Is this relation a function?

\newline

Choices:

\newline

(A) yes

\newline

(B) no

Define function: Understand the definition of a function. $\newline$ A relation is a function if each input ( $x$ -value) has exactly one output ( $y$ -value). We need to check if any $x$ -value in the set of ordered pairs repeats with a different $y$ -value.
List $x$ -values: List the $x$ -values from the ordered pairs. $\newline$ From the pairs $(18, 0)$ , $(9, 14)$ , and $(12, 16)$ , the $x$ -values are $18$ , $9$ , and $12$ .
Check repeats: Check for repeated $x$ -values. $\newline$ The $x$ -values $18$ , $9$ , and $12$ are all different. There are no repeats, so each $x$ -value is paired with exactly one $y$ -value.
Conclude function: Conclude if the relation is a function. $\newline$ Since no $x$ -value is repeated with a different $y$ -value, the relation is a function.