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Mathematics 15 Online
OpenStudy (ttop0816):

Use the vertical line test to identify whether y is a function of x. I think it's not a function because the vertical line crosses 2 values. Am I correct??

OpenStudy (ttop0816):

OpenStudy (infiniite):

You're correct :) A function can only have one y output for each x value.

OpenStudy (ttop0816):

Thank you! :)

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