Math Problem Statement
Solution
To determine the correct answers, let’s analyze the graph step by step, based on each option provided:
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Domain:
- The domain represents the set of all -values for which the graph has points.
- Observing the graph, the -values range from (open circle, so not included) to (closed circle, so included).
- Therefore, the domain is , which matches Option A.
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Range:
- The range represents the set of all -values for which the graph has points.
- Observing the graph, the -values range from (open circle, so not included) to .
- Therefore, the range is , which matches Option B.
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Increasing:
- The graph is increasing on intervals where it goes upward as increases.
- Here, the graph increases from to .
- This matches Option C: increasing .
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Decreasing:
- The graph is decreasing on intervals where it goes downward as increases.
- The graph decreases from to .
- This matches Option D: decreasing .
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Positive:
- The function is positive when it lies above the -axis ().
- Observing the graph, it is above the -axis between and .
- This matches Option E: positive .
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Negative:
- The function is negative when it lies below the -axis ().
- Observing the graph, it is below the -axis in the intervals and .
- This matches Option F: negative .
Final Answer:
The correct selections are:
- A. domain: (-3, 4]
- B. range: (-3, 3]
- C. increasing: (-3, -1)
- D. decreasing: (-1, 4)
- E. positive: (-2, 2)
- F. negative: (-3, -2), (2, 4]
Would you like further clarification on any of these points, or do you need more details on a specific part of the analysis?
Relative Questions:
- What is the importance of identifying the domain and range in a function's graph?
- How can one determine intervals of increase and decrease in a function graphically?
- Why are open and closed circles used in graphs, and what do they signify?
- What are some real-world applications of interpreting function positivity and negativity?
- How do you determine if a function is positive or negative in a given interval?
Tip: Always pay close attention to open and closed circles on graphs as they indicate whether endpoints are included in the domain and range.
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Math Problem Analysis
Mathematical Concepts
Domain and Range
Increasing and Decreasing Intervals
Positive and Negative Intervals
Function Analysis
Formulas
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Theorems
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Suitable Grade Level
Grades 7-9
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