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Decide whether the relation is a function.
-{(-5, -2) , (-2, -4) , (3, -1) , (3, 7) }
Era
A long and distinct period of history with a particular feature or characteristic.
Industrial Revolution
A period of major industrialization that took place during the late 1700s and early 1800s, revolutionizing technology, economy, and society.
England
A country that is part of the United Kingdom, known for its rich history, cultural heritage, and as the birthplace of the English language.
United States
A country in North America consisting of 50 states and a federal district, known for its diverse culture and significant global influence.
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