Math Problem Statement

which of the answer choices is correct?

Which of the following best describes the relation shown in the graph?

Solution

The problem is asking which statement correctly describes the relation shown in the graph.

Analyzing the Graph:

  1. Check if it's a Function: A relation is a function if every input (x-value) has exactly one output (y-value). To determine this, we can use the Vertical Line Test. If any vertical line crosses the graph more than once, the graph does not represent a function.

  2. Identify Domain and Range:

    • Domain: The set of all possible x-values. Based on the graph, the x-values range from -2 to 4.
    • Range: The set of all possible y-values. The y-values range from -1 to 5.

Vertical Line Test:

  • The graph has a "V" shape where a vertical line would cross it more than once in some sections, meaning it fails the Vertical Line Test. Therefore, it is not a function.

Matching the Statements:

Let's examine each option:

  • A) IncorrectIncorrect It claims the relation is a function, which it is not.
  • B) CorrectCorrect It correctly states that the domain is [2,4][-2, 4], the range is [1,5][-1, 5], and the relation is not a function.
  • C) IncorrectIncorrect The domain [1,5][-1, 5] does not match the graph.
  • D) IncorrectIncorrect It claims the relation is a function, which it is not.

Conclusion:

The correct answer is B.

Would you like more details or have any questions?

Here are 5 related questions for further exploration:

  1. How can you determine the domain and range of a graph?
  2. What is the Vertical Line Test and why is it important?
  3. How can you tell if a relation is not a function just by looking at a set of ordered pairs?
  4. Can a function have the same y-value for different x-values? Why or why not?
  5. What are some real-life examples of relations that are not functions?

Tip: Always apply the Vertical Line Test to verify if a relation is a function when looking at a graph.

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Math Problem Analysis

Mathematical Concepts

Function Testing
Domain and Range
Vertical Line Test

Formulas

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Theorems

Vertical Line Test

Suitable Grade Level

Grades 8-10