Work Step by Step
From the given equation, we have $A=16, C=9$. Thus $AC\gt 0$ which indicates an ellipse (not a circle since $A\ne C$).
You can help us out by revising, improving and updating this answer.Update this answer
After 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.