Math Problem Statement

Use the graph to determine the function's domain, range, intercepts, and specific values.

Solution

Let's analyze the graph and solve the given problems:

From the image of the graph and the question:

  • The graph shows a V-shaped function which seems to be a piecewise linear function. Based on the visual information, let's tackle each part.

a. Domain: The domain represents all the possible xx-values that the function can take. Since the graph extends infinitely in both directions along the x-axis, the domain appears to be all real numbers.

Domain: (,)(-\infty, \infty)


b. Range: The range represents all the possible yy-values that the function can output. The graph has a minimum point at y=2y = -2, and the function increases from this point. Thus, the range will be all values greater than or equal to 2-2.

Range: [2,)[-2, \infty)


c. X-intercepts: The x-intercepts are the points where the function crosses the x-axis (i.e., where y=0y = 0). Based on the graph, the function crosses the x-axis at x=8x = -8 and x=4x = 4.

X-intercepts: x=8,4x = -8, 4


d. Y-intercept: The y-intercept is the point where the function crosses the y-axis (i.e., where x=0x = 0). From the graph, this happens at y=2y = 2.

Y-intercept: y=2y = 2


e. Function values:

  • f(5)f(-5): From the graph, when x=5x = -5, the corresponding yy-value is y=1y = 1.
  • f(2)f(-2): When x=2x = -2, the corresponding yy-value is y=0y = 0.

Summary of the answers:

  • a. Domain: (,)(-\infty, \infty)
  • b. Range: [2,)[-2, \infty)
  • c. X-intercepts: 8,4-8, 4
  • d. Y-intercept: 22
  • e. Function values: f(5)=1f(-5) = 1, f(2)=0f(-2) = 0

Would you like more details on any of these, or need further assistance?

Related Questions:

  1. How do you determine the domain and range of a piecewise function?
  2. How are the x-intercepts of a function useful in real-world applications?
  3. What changes to a graph can affect the x- and y-intercepts?
  4. How can you graph a function when only given its domain and range?
  5. What types of functions often have V-shaped graphs?

Tip: When finding the domain of a function, always check if there are any restrictions (like division by zero or square roots of negative numbers).

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Math Problem Analysis

Mathematical Concepts

Algebra
Functions
Piecewise Functions
Graph Analysis

Formulas

Finding x-intercepts: Set y = 0
Finding y-intercept: Set x = 0
Evaluating function values: f(x)

Theorems

Graphical interpretation of functions

Suitable Grade Level

Grades 7-8