Part I: Dali's Target Consider the following contour map of a continuous function f (x, y): y 12 10 8 6 4 2 2. Estimate f(2,4). 0 3. Estimate f(5,8). 1 2 3 4 use level curves, find domains and limits 5 6 4. How many values satisfy f(7,y)=20? OPLE PA 30 5. How many values of x satisfy f(x,8)=20? + 1. For approximately what values of y is it true that 10≤ f(5,y) ≤30? 7 20 10 8 9 10

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Author:Carter
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Chapter1: Expressions And Functions
Section1.8: Interpreting Graphs Of Functions
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Part I
**Part I:**

**Dali's Target**

Consider the following contour map of a continuous function \( f(x, y) \):

![Contour Map of Function](path/to/your/image.jpg)

The contour map shows level curves for the values 10, 20, and 30 of the function \( f(x, y) \). The x-axis ranges from 0 to 10 and the y-axis ranges from 0 to 12.

1. **For approximately what values of \( y \) is it true that \( 10 \leq f(5, y) \leq 30 \)?**

2. **Estimate \( f(2, 4) \).**

3. **Estimate \( f(5, 8) \).**

4. **How many values satisfy \( f(7, y) = 20 \)?**

5. **How many values of \( x \) satisfy \( f(x, 8) = 20 \)?**

### Graph/Diagram Description

The contour map (or level curve map) shows the graphical representation of the function \( f(x, y) \) over the x-y plane. The contour lines represent places where the function \( f(x, y) \) has constant values.

- The contour line labeled 30 encloses the highest region of the graph.
- The contour line labeled 20 surrounds the area covered by the 30 level curve, indicating a lower value than the central region.
- The contour line labeled 10 encompasses both the 20 and 30 level curves, indicating that the function value is 10 along this outermost boundary.

In this map:
- Between each pair of consecutive contours, the function's value transitions smoothly.
- The concentration and spacing of contour lines help in understanding the gradient and slope of the terrain represented by the function.

**Analysis and Answers:**

1. **For approximately what values of \( y \) is it true that \( 10 \leq f(5, y) \leq 30 \)?**

   Observing the contour map, for \( x = 5 \), the possible values of \( y \) that satisfy the given condition fall between 4 and 8.

2. **Estimate \( f(2, 4) \).**

   At the point \( (2, 4) \), we are outside the contour line labeled 10, so we can estimate \( f(2
Transcribed Image Text:**Part I:** **Dali's Target** Consider the following contour map of a continuous function \( f(x, y) \): ![Contour Map of Function](path/to/your/image.jpg) The contour map shows level curves for the values 10, 20, and 30 of the function \( f(x, y) \). The x-axis ranges from 0 to 10 and the y-axis ranges from 0 to 12. 1. **For approximately what values of \( y \) is it true that \( 10 \leq f(5, y) \leq 30 \)?** 2. **Estimate \( f(2, 4) \).** 3. **Estimate \( f(5, 8) \).** 4. **How many values satisfy \( f(7, y) = 20 \)?** 5. **How many values of \( x \) satisfy \( f(x, 8) = 20 \)?** ### Graph/Diagram Description The contour map (or level curve map) shows the graphical representation of the function \( f(x, y) \) over the x-y plane. The contour lines represent places where the function \( f(x, y) \) has constant values. - The contour line labeled 30 encloses the highest region of the graph. - The contour line labeled 20 surrounds the area covered by the 30 level curve, indicating a lower value than the central region. - The contour line labeled 10 encompasses both the 20 and 30 level curves, indicating that the function value is 10 along this outermost boundary. In this map: - Between each pair of consecutive contours, the function's value transitions smoothly. - The concentration and spacing of contour lines help in understanding the gradient and slope of the terrain represented by the function. **Analysis and Answers:** 1. **For approximately what values of \( y \) is it true that \( 10 \leq f(5, y) \leq 30 \)?** Observing the contour map, for \( x = 5 \), the possible values of \( y \) that satisfy the given condition fall between 4 and 8. 2. **Estimate \( f(2, 4) \).** At the point \( (2, 4) \), we are outside the contour line labeled 10, so we can estimate \( f(2
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