A part of a line, with one endpoint, that continues without end in one direction.

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Multiple Choice

A part of a line, with one endpoint, that continues without end in one direction.

Explanation:
A ray is a part of a line that has one endpoint and goes forever in one direction. Think of starting at a specific point and continuing straight ahead without ever stopping—the starting point is the endpoint, and the line keeps extending onward in that one direction. This is different from a line, which goes on in both directions without endpoints. A vertex is just a point where lines or rays meet, not a description of a part of a line itself. Intersect means two lines or rays cross each other.

A ray is a part of a line that has one endpoint and goes forever in one direction. Think of starting at a specific point and continuing straight ahead without ever stopping—the starting point is the endpoint, and the line keeps extending onward in that one direction.

This is different from a line, which goes on in both directions without endpoints. A vertex is just a point where lines or rays meet, not a description of a part of a line itself. Intersect means two lines or rays cross each other.

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