Understanding Relations
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Beginner
Start here! Easy to understand
Beginner Explanation
A relation is a set of ordered pairs. For example, $R = \{(1,2), (3,4), (5,6)\}$ pairs 1→2, 3→4, 5→6. The domain is $\{1, 3, 5\}$ and the range is $\{2, 4, 6\}$.
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Practice Problems
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1
Quick Quiz
Single Choice Quiz
Beginner
Which of the following is an ordered pair?
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2
Real-World Problem
Question Exercise
Intermediate
Teenager Scenario
Consider the relation between hours studied and grades received: $(\text{hours}, \text{grade})$
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3
Thinking Challenge
Thinking Exercise
Intermediate
Think About This
If you have the ordered pairs (2, 3), (4, 5), and (6, 7), what is the domain?
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4
Challenge Quiz
Single Choice Quiz
Advanced
What is the range of the relation defined by the ordered pairs (1, 2), (3, 4), (5, 6)?
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Recap
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Review key concepts and takeaways
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