Mathematics
Grade10
Easy

Question

Use a graph to determine the domain and range of this relation.

  1. It is not a relation.    
  2. Domain: {-4, -2, -1, 3}; Range: {-1, 0, 1, 2}    
  3. Domain: {-1, 0, 1, 2}; Range: {-4, -2, -1, 3}    
  4. It is not one-to-one    

Hint:

A domain or region is a non-empty connected open set in a topological space

The correct answer is: It is not one-to-one


    {(3, 1), (3, -1), (-1, 0), (-2, 1), (-2, 2), (-4, -1)}

    Since more than one element in the domain maps to single elements in the range, the function is not one-to-one.

    Range is a statistical measurement of dispersion, or how much a given data set is stretched out from smallest to largest

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