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Mathematics, 08.03.2021 22:30 tilacohen

To determine whether a graph of a relation is also a function, Shayla declares that the y-axis is a vertical line and counts the number of times that the graph intersects the y-axis. If the graph has exactly one y-intercept, 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?

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To determine whether a graph of a relation is also a function, Shayla declares that the y-axis is a...
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