Ohio Assessments for Educators (OAE) Mathematics Practice Exam 2025 - Free Practice Questions and Study Guide

Question: 1 / 400

What does the vertical line test determine in regard to a graph?

Whether the graph is a function

The vertical line test is a method used to determine if a graph represents a function. A function is defined as a relationship where each input (or x-value) corresponds to exactly one output (or y-value). When performing the vertical line test, if a vertical line intersects the graph at more than one point, it indicates that there are multiple y-values for at least one x-value, which means that the relation does not meet the criteria for being a function. Therefore, passing the vertical line test confirms that for every x-value in the graph, there is only one associated y-value, fulfilling the definition of a function.

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Whether the graph is linear

Whether the graph has discontinuities

Whether the graph has roots

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