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# Question Video: Identifying Rays Mathematics • 3rd Grade

Does the figure allow you to conclude that the ray starting at πΆ and passing through π· passes through point π΅?

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### Video Transcript

Does the given figure allow you to conclude that the ray starting at πΆ and passing through π· passes through point π΅. In order to answer this question, we need to recall what we mean by a ray. We say that a ray is a portion of a line. Unlike a line segment, though, it extends from a single endpoint and goes off in a particular direction to infinity. Our ray starts at πΆ, so πΆ is the endpoint, and it passes through π·. We can represent this using a single arrow πΆπ· as shown.

So does this ray pass through point π΅? Well, no, we said that point πΆ is the endpoint. Itβs the point at which a line segment or ray ends. It does not extend back out past this endpoint in the direction of π΅. And so we can say no, the given figure does not allow us to conclude that the ray that starts at πΆ and passes through π· also passes through point π΅.

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