Recognizing Functions
Grade 7•45 minutes
Learning Objective
I can determine if a set of ordered pairs, a table, or a mapping represents a function.
Practice Questions
This lesson includes 2 practice questions to reinforce learning.
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1. The following ordered pairs represent a relation: (2, 5), (3, 8), (4, 11), (2, 7). Does this relation represent a function? Explain why or why not.
2. A machine processes metal pieces. The table shows the input weight of the metal and the output length after processing. Input Weight (kg) | Output Length (cm) ------- | -------- 5 | 12 7 | 15 9 | 18 5 | 12 11 | 21 Does this table represent a function? Explain your reasoning.
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