Math Problem Statement

What are the domain and range of this relation? (-10, -3), (-10, 9), (2, 9), (10, 10), (-5, 0)

Solution

To determine the domain and range of the given relation, we need to analyze each ordered pair in the relation:

Relation:

  • (-10, -3)
  • (-10, 9)
  • (2, 9)
  • (10, 10)
  • (-5, 0)

Step 1: Find the Domain

The domain consists of all the unique xx-values in the ordered pairs:

  • xx-values: -10, -10, 2, 10, -5
  • Unique xx-values: 10,5,2,10-10, -5, 2, 10

Thus, the domain is {10,5,2,10}\{-10, -5, 2, 10\}.

Step 2: Find the Range

The range consists of all the unique yy-values in the ordered pairs:

  • yy-values: -3, 9, 9, 10, 0
  • Unique yy-values: 3,0,9,10-3, 0, 9, 10

Thus, the range is {3,0,9,10}\{-3, 0, 9, 10\}.

Answer

The correct answer from the choices is:

  • Domain: {10,5,2,10}\{-10, -5, 2, 10\}
  • Range: {3,0,9,10}\{-3, 0, 9, 10\}

This matches the third option.

Would you like more details or have any questions?


Here are some related questions for further exploration:

  1. How would the domain and range change if another point, such as (0,5)(0, 5), was added?
  2. What is the difference between a relation and a function?
  3. Can a relation have duplicate xx-values and still be considered a function?
  4. How can you graphically represent the domain and range of a relation?
  5. What does it mean for a relation to have a finite domain and range?

Tip: In a relation, if an xx-value appears more than once with different yy-values, the relation is not a function.

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Math Problem Analysis

Mathematical Concepts

Relations and Functions
Domain and Range

Formulas

Domain: All unique x-values in the relation
Range: All unique y-values in the relation

Theorems

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Suitable Grade Level

Grade 8