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anonymous
 one year ago
To determine whether a graph of a relation is also a function Shayla declares that the yaxis is a vertical line and counts the number of times that the graph intersects the yaxis If the graph has exactly one yintercept Shayla concludes that the graph shows a function. In all other cases, she declares that it is not a function.
Is Shayla applying the vertical line test correctly?
No, because the yaxis is a horizontal line.
No, because using the yaxis tests only whether x = 0 is mapped to multiple values.
Yes, because multiple yintercepts represent multiple xvalues being mapped to y
anonymous
 one year ago
To determine whether a graph of a relation is also a function Shayla declares that the yaxis is a vertical line and counts the number of times that the graph intersects the yaxis If the graph has exactly one yintercept Shayla concludes that the graph shows a function. In all other cases, she declares that it is not a function. Is Shayla applying the vertical line test correctly? No, because the yaxis is a horizontal line. No, because using the yaxis tests only whether x = 0 is mapped to multiple values. Yes, because multiple yintercepts represent multiple xvalues being mapped to y

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