SOLUTION: How do you decide by looking at a graph or a curve whether y is defined as a function of x? I did the vertical line test on few of the graphs, and decided that the ones that fai

SOLUTION: How do you decide by looking at a graph or a curve whether y is defined as a function of x? I did the vertical line test on few of the graphs, and decided that the ones that fai

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Question 616455: How do you decide by looking at a graph or a curve whether y is defined as a function of x?
I did the vertical line test on few of the graphs, and decided that the ones that fail the test aren't a function of x. Is that how you determine if y is defined as a function of x.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
That's right. There should be only one f(x) for any given x
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