Math Problem Statement

Use the graph of y = f(x) to answer the following: a) f(-3), b) f(0), c) Find all x for which f(x) = -1, d) Find all x for which f(x) = 1, e) Determine the x-intercept, f) Determine the y-intercept, g) Determine the domain of f, h) Determine the range of f.

Solution

Let's go through the questions using the graph provided in the image.

a. f(3)f(-3):

To find f(3)f(-3), locate x=3x = -3 on the x-axis and find the corresponding y-value on the graph. The point on the graph at x=3x = -3 has a y-value of approximately 22.

  • Answer: f(3)=2f(-3) = 2.

b. f(0)f(0):

To find f(0)f(0), locate x=0x = 0 on the x-axis and find the corresponding y-value on the graph. The point on the graph at x=0x = 0 has a y-value of approximately 33.

  • Answer: f(0)=3f(0) = 3.

c. Find all xx for which f(x)=1f(x) = -1:

To find all xx for which f(x)=1f(x) = -1, identify where the graph intersects the line y=1y = -1. The graph intersects y=1y = -1 at x=5x = -5 and x=1x = -1.

  • Answer: x=5x = -5 and x=1x = -1.

d. Find all xx for which f(x)=1f(x) = 1:

To find all xx for which f(x)=1f(x) = 1, identify where the graph intersects the line y=1y = 1. The graph intersects y=1y = 1 at x=2x = 2 and x=4x = 4.

  • Answer: x=2x = 2 and x=4x = 4.

e. Determine the x-intercept:

The x-intercept is where the graph crosses the x-axis. The graph crosses the x-axis at x=2x = -2.

  • Answer: The x-intercept is x=2x = -2.

f. Determine the y-intercept:

The y-intercept is where the graph crosses the y-axis. The graph crosses the y-axis at y=3y = 3.

  • Answer: The y-intercept is y=3y = 3.

g. Determine the domain of ff:

The domain of ff is the set of all possible x-values for which the function is defined. The graph is defined for xx values from 5-5 to 55.

  • Answer: The domain is [5,5][-5, 5].

h. Determine the range of ff:

The range of ff is the set of all possible y-values that the function can take. The y-values range from 4-4 to 55.

  • Answer: The range is [4,5][-4, 5].

Do you want more details or have any questions on this? Here are five related questions for further practice:

  1. What is the value of f(4)f(4)?
  2. For what value of xx does f(x)=5f(x) = 5?
  3. Describe the symmetry of the function shown.
  4. Is the function increasing or decreasing at x=2x = -2?
  5. Determine if f(x)f(x) is a one-to-one function based on the graph.

Tip: When interpreting graphs, always pay attention to where the function intersects key points like the axes or specific horizontal lines (e.g., y=0y = 0, y=1y = 1, etc.).

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Math Problem Analysis

Mathematical Concepts

Function Graphs
Intercepts
Domain and Range

Formulas

f(x) notation for function values
Intercepts: x-intercept and y-intercept

Theorems

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Suitable Grade Level

Grades 9-12