Explore BrainMass

Circles and Ellipses: Which equation models the graph?

Please view the attachment below to match up the correct equation with the graph.


Solution Preview

The answer is the first one, x^2/16+y^2/4=1
The way to see this is the following.
The graph is an ellipse centered at (0,0).
So the equation is ...

Solution Summary

The equation of a circle or ellipse is found by looking at a graph.