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Mathematics 10 Online
OpenStudy (anonymous):

I just want to make sure that a circle graph is a function? I think it is.

OpenStudy (phi):

strictly speaking the graph of a circle is not a function, because it has 2 y values for a particular x

OpenStudy (anonymous):

Ohhh....it's not? :(

OpenStudy (campbell_st):

well you need to split the circle into 2 parts if its to become a function. This is because it fails the vertical line test

OpenStudy (phi):

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OpenStudy (anonymous):

Oh, I get what you mean. :) Thanks soo much! :)

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