Review your knowledge of ellipse equations and their features: center, radii, and foci.

What is the standard equation of an ellipse?

(xh)2a2+(yk)2b2=1\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1
This is the standard equation of the ellipse centered at (h,k)(h,k), whose horizontal radius is aa and vertical radius is bb.
Want to learn more about ellipse equation? Check out this video.

Check your understanding

Problem 1
Which ellipse is represented by the equation (x4)29+(y+6)24=1\dfrac{(x-4)^2}{9}+\dfrac{(y+6)^2}{4}=1 ?
Choose 1 answer:
Choose 1 answer:
Want to try more problems like this? Check out this exercise.
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