Determine whether the following rule defines $y$ as a function of $x$
$Unknown environment 'tabular'$

Is $y$ a function of $x$ ?
Yes
No

Answer

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Final Answer: $No$

Steps

Step 1 ：Determine whether the following rule defines $y$ as a function of $x$

Step 2 ：In order for $y$ to be a function of $x$ , each value of $x$ must correspond to exactly one value of $y$ .

Step 3 ：Looking at the table, we can see that the values of $x$ are not unique - the values 9, 4, and 1 each appear twice, with different corresponding $y$ values.

Step 4 ：Therefore, $y$ is not a function of $x$ .

Step 5 ：Final Answer: $No$

Determine whether the following rule defines y as a function of xUnknown environment 'tabular'Unknown environment 'tabular' Is y a function of x ?YesNo

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Determine whether the following rule defines $y$ as a function of $x$
$Unknown environment 'tabular'$

Is $y$ a function of $x$ ?
Yes
No