SOLUTION: how do you know wether a graph is a function are not?

SOLUTION: how do you know wether a graph is a function are not?

Algebra.Com

Question 283478: how do you know wether a graph is a function are not?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If the graph passes the vertical line test, then the graph is a function.
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