Math Problem Statement

Find the domain and range of the function graphed below.

Solution

To determine the domain and range of the given function based on the graph, let's analyze it carefully:

Domain:

  • The domain refers to the set of all possible xx-values (inputs) for which the function is defined.
  • Observing the graph, the function starts at x=2x = -2 (where the blue dot is filled) and continues until x=3x = 3 (where there is an open circle).
  • The closed dot at x=2x = -2 indicates that the point is included, while the open circle at x=3x = 3 indicates that the point is not included.

Thus, the domain is: [2,3)[-2, 3) (meaning the function is defined for xx from 2-2 to 3, but not including x=3x = 3).

Range:

  • The range refers to the set of all possible yy-values (outputs) that the function can take.
  • From the graph, the highest point occurs at y=4y = 4, and the lowest point occurs just above y=5y = -5, but since the open circle indicates it does not reach y=5y = -5, the lowest point is just slightly above 5-5.
  • Therefore, the range extends from y=5y = -5 (not inclusive) to y=4y = 4 (inclusive).

Thus, the range is: (5,4](-5, 4] (meaning the function can take values from just above 5-5 up to 4, including 4).

Summary:

  • Domain: [2,3)[-2, 3)
  • Range: (5,4](-5, 4]

Would you like further details or explanations on any part of this problem?

Here are 5 related questions to deepen your understanding:

  1. What happens to the domain and range if we extend the graph further on both sides?
  2. How do open and closed circles affect the domain and range of a function?
  3. Can a function have a domain or range that is not continuous?
  4. How would you describe the behavior of the function as xx approaches 3?
  5. What are the implications of a function having a restricted domain in real-world scenarios?

Tip: Always remember that a filled dot means the point is included in the domain or range, while an open dot means the point is excluded.

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Math Problem Analysis

Mathematical Concepts

Domain and Range
Functions
Graph Interpretation

Formulas

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Theorems

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Suitable Grade Level

Grades 7-10