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  • What is the range and domain of the set of points {(3, 6), (5, 7), (7, 7), (8, 9)}? A. Domain: {3, 5, 7, 8} B. Range: {6, 7, 9}
What is the range and domain of the set of points {(3, 6), (5, 7), (7, 7), (8, 9)}? A. Domain: {3, 5, 7, 8} B. Range: {6, 7, 9}

What is the range and domain of the set of points {(3, 6), (5, 7), (7, 7), (8, 9)}? A. Domain: {3, 5, 7, 8} B. Range: {6, 7, 9}

Answer:
Domain: \(\{3, 5, 7, 8\}\)
Range: \(\{6, 7, 9\}\)

Explanation:
In this problem, we are asked to find the domain and range of a set of points in a two-dimensional space. The domain consists of the x-coordinates of the points, while the range consists of the y-coordinates.

Steps:

  1. Identify the Points: The given set of points is \(\{(3, 6), (5, 7), (7, 7), (8, 9)\}\).
  1. Extract the Domain:
  • The domain is formed by taking all the unique x-coordinates from the points:
  • From \((3, 6)\), we get \(3\).
  • From \((5, 7)\), we get \(5\).
  • From \((7, 7)\), we get \(7\).
  • From \((8, 9)\), we get \(8\).
  • Thus, the domain is \(\{3, 5, 7, 8\}\).
  1. Extract the Range:
  • The range is formed by taking all the unique y-coordinates from the points:
  • From \((3, 6)\), we get \(6\).
  • From \((5, 7)\), we get \(7\).
  • From \((7, 7)\), we get \(7\) again (but we only list unique values).
  • From \((8, 9)\), we get \(9\).
  • Thus, the range is \(\{6, 7, 9\}\).

In conclusion, the domain consists of the unique x-values, and the range consists of the unique y-values from the given set of points.