Answer
$y$ is not a function of $x$
Work Step by Step
Since there cannot be only one output ($y$) for every input ($x$), $y$ is not a function of $x$.
$2x+y^2=6$
$y^2=-2x+6$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.