The domain and range of this circle?

I recently had this circle on a test and I got the range wrong. My answer for the domain was [-1, 3] which she seemed to have marked correct and my answer for the range was [1, -2] which she marked wrong.

I made a makeshift graph here: http://img.photobucket.com/albums/v471/Rathi04/graph.jpg

Any help is appriciated, and note that the graph is not using decimals or anything that exact.

Top 3 Answers

A few days ago

Sandra

Favorite Answer

your range is incorrect because the top of the circle is not in over the x axis which would make it positive. It is below the x axis so it should start with a negative value.

The value is hard to read but i would say its a (-0.25, -2)

Hope that helps

5 years ago

Anonymous

Only functions have domains and ranges. A circle is not a function.

A few days ago

tkquestion

Yes, that is wrong. Domain is the X value and the Range is the Y value. It should have been [0, -2].

How do i graph x + y = -2 ???

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The domain and range of this circle?

The domain and range of this circle?

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