Look at this set of ordered pairs: (1, 15) (18, 0) (18, 11) Is this relation a function? Choices: (A)yes (B)no

Understand Function Definition: Step 1: Understand the definition of a function. A relation is a function if each input (x-value) has exactly one output (y-value). Examine Ordered Pairs: Step 2: Examine the given ordered pairs for duplicate x-values with different y-values: (1, 15) (18, 0) (18, 11) Here, the x-value 18 corresponds to two different y-values (0 and 11). Identify Violation: Step 3: Since the x-value 18 maps to more than one y-value, this violates the definition of a function. Therefore, the relation is not a function.

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Look at this set of ordered pairs: $\newline$ $(1, 15)$ $\newline$ $(18, 0)$ $\newline$ $(18, 11)$ $\newline$ 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

(1, 15)

\newline

(18, 0)

\newline

(18, 11)

\newline

Is this relation a function?

\newline

Choices:

\newline

(A) yes

\newline

(B) no

Understand Function Definition: Step $1$ : Understand the definition of a function. A relation is a function if each input ( $x$ -value) has exactly one output ( $y$ -value).
Examine Ordered Pairs: Step $2$ : Examine the given ordered pairs for duplicate $x$ -values with different $y$ -values: $\newline$ $(1, 15)$ $\newline$ $(18, 0)$ $\newline$ $(18, 11)$ $\newline$ Here, the $x$ -value $18$ corresponds to two different $y$ -values ( $0$ and $11$ ).
Identify Violation: Step $3$ : Since the $x$ -value $18$ maps to more than one $y$ -value, this violates the definition of a function. Therefore, the relation is not a function.