Recognizing Functions

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Objective

I can determine if a relationship is a function by checking if each input has only one output.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Define what it means for a relationship to be a function.

2

Explain how you can determine if a table represents a function.

Part 3 of 3

Exit ticket

Quick comprehension check

The following set of points represents a relationship: {(2, 4), (3, 5), (4, 6), (2, 7)}. Is this relationship a function? Explain your answer. The following table represents a relationship: x | y ------- -1 | 2 0 | 3 1 | 2 2 | 4 Is this relationship a function? Explain your answer. The following mapping diagram represents a relationship: x: 5 → y: 10, x: 6 → y: 12, x: 5 → y: 15. Is this relationship a function? Explain your answer.

Sample answer included in the free materials

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