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The image shows a page from a student book related to functions, specifically focusing on input/output variables, domain, and range. There is a table of values depicting a home's electric bill \(B\) in dollars in relation to the average monthly temperature \(t\) in Phoenix (in degrees Fahrenheit). Additionally, there is a graph, but it is somewhat unclear due to the image quality.

To analyze the information presented:

### 1. **Input/Output and Variables:**
   - **Input**: Temperature (\(t\)) in degrees Fahrenheit.
   - **Output**: Electric bill (\(B\)) in dollars.

### 2. **Practical Domain:**
   The domain would include the range of temperatures listed in the table:
   \[
   \{55^\circ F, 60^\circ F, 65^\circ F, 73^\circ F, 82^\circ F, 91^\circ F, 95^\circ F, 77^\circ F, 88^\circ F, 64^\circ F\}
   \]
   This gives the minimum and maximum temperatures: 
   \[
   55^\circ F \leq t \leq 95^\circ F
   \]

### 3. **Practical Range:**
   The range includes the corresponding electric bills from the table:
   \[
   \{125, 115, 98, 102, 180, 185, 188, 122, 115, 125 \}
   \]
   The minimum and maximum electric bills:
   \[
   98 \leq B \leq 188
   \]

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Would you like to dive deeper into any specific part, or explore further details like how to determine trends or interpret the graph?

Here are some related questions:
1. What type of function might represent the relationship between \(t\) and \(B\)?
2. How does temperature affect the electric bill based on the given table?
3. Can the data be used to make predictions about electric bills at temperatures not listed?
4. Is the relationship between temperature and the electric bill linear or non-linear?
5. How would you calculate the average electric bill based on the given data?

**Tip**: When analyzing a table, always check for patterns or changes between inputs and outputs to hypothesize the relationship (linear, quadratic, etc.).

Analyze a table showing a home’s electric bill B in dollars given the average monthly temperature t in Phoenix, and determine input/output variables, practical domain, and practical range.

This problem analyzes the relationship between a home’s electric bill and the average monthly temperature in Phoenix. It focuses on identifying input/output variables, the practical domain (temperature range), and practical range (electric bill values). Suitable for students in Grades 9-11.

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