Answer
See graph
Work Step by Step
This will be an ellipse. The equation can be rewritten as
$\frac{x^2}{16}+\frac{y^2}{4}=1$
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.