Math Problem Statement

Based on the graph of the function g(x) provided, answer the following questions: (a) Find g(-4), g(-2), g(0), g(2), and g(4). (b) Determine the domain and range of g(x). (c) Identify the values of x for which g(x) = 3. (d) Estimate the values of x for which g(x) ≤ 0. (e) Calculate the net change in g(x) between x = -1 and x = 2.

Solution

Let’s solve the questions step by step based on the given graph of g(x)g(x).


(a) g(4)g(-4), g(2)g(-2), g(0)g(0), g(2)g(2), and g(4)g(4):

  1. g(4)g(-4): From the graph, when x=4x = -4, g(4)=1g(-4) = 1.
  2. g(2)g(-2): When x=2x = -2, g(2)=3g(-2) = -3.
  3. g(0)g(0): When x=0x = 0, g(0)=0g(0) = 0.
  4. g(2)g(2): When x=2x = 2, g(2)=3g(2) = 3.
  5. g(4)g(4): When x=4x = 4, g(4)=1g(4) = -1.

(b) Domain and Range of g(x)g(x):

  • Domain: The graph extends horizontally from x=4x = -4 to x=4x = 4, so Domain=[4,4]\text{Domain} = [-4, 4].
  • Range: The vertical extent of the graph is from y=3y = -3 to y=3y = 3, so Range=[3,3]\text{Range} = [-3, 3].

(c) Values of xx for which g(x)=3g(x) = 3:

From the graph, g(x)=3g(x) = 3 at x=2x = 2 and x=3x = -3.


(d) Values of xx for which g(x)0g(x) \leq 0:

From the graph, g(x)0g(x) \leq 0 for:

  • x[3,0]x \in [-3, 0] (from x=3x = -3 to x=0x = 0, including endpoints).

(e) Net change in g(x)g(x) between x=1x = -1 and x=2x = 2:

  • At x=1x = -1, g(1)=2g(-1) = -2.
  • At x=2x = 2, g(2)=3g(2) = 3.
  • Net change: g(2)g(1)=3(2)=5g(2) - g(-1) = 3 - (-2) = 5.

Let me know if you would like a detailed explanation for any part or have further questions. Here are five follow-up questions you might find useful:

  1. How can you verify the domain and range from the graph?
  2. Why is the net change calculated as g(2)g(1)g(2) - g(-1)?
  3. Can you determine if g(x)g(x) is a one-to-one function?
  4. How would you find where g(x)>0g(x) > 0 on this graph?
  5. What would the slope of the tangent line represent for g(x)g(x) at specific points?

Tip: Always observe whether a function is increasing or decreasing between points to better understand its behavior.

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Math Problem Analysis

Mathematical Concepts

Graph interpretation
Domain and range
Inequalities
Net change calculation

Formulas

Net change formula: g(x2) - g(x1)

Theorems

Definition of domain and range
Properties of inequalities

Suitable Grade Level

Grades 8-10