Math Problem Statement

Use the graph to determine a. the function's domain; b. the function's range; c. the x-intercepts, if any; d. the y-intercept, if there is one; e. the following function values: f(-1), f(5).

Solution

Let's break down the question based on the graph provided:

a. Domain of the function

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

  • From the graph, the function exists from x=3x = -3 to x=6x = 6. Therefore, the domain is: [3,6]\boxed{[-3, 6]}

b. Range of the function

The range is the set of all possible output values (y-values) that the function can take.

  • From the graph, the function’s y-values range from y=3y = -3 to y=4y = 4. Therefore, the range is: [3,4]\boxed{[-3, 4]}

c. X-intercepts

The x-intercept is the point where the function crosses the x-axis (y=0y = 0).

  • From the graph, the function crosses the x-axis at x=3x = 3. Thus, the x-intercept is: (3,0)\boxed{(3, 0)}

d. Y-intercept

The y-intercept is the point where the function crosses the y-axis (x=0x = 0).

  • From the graph, the y-intercept occurs at (0,3)(0, 3). Thus, the y-intercept is: (0,3)\boxed{(0, 3)}

e. Function values

You are asked to find specific function values, f(1)f(-1) and f(5)f(5):

  • At x=1x = -1, from the graph, f(1)=4f(-1) = 4. So, f(1)=4f(-1) = \boxed{4}.
  • At x=5x = 5, from the graph, f(5)=2f(5) = -2. So, f(5)=2f(5) = \boxed{-2}.

Let me know if you would like more details or have any questions!

Here are 5 related questions to expand your understanding:

  1. How do you determine the slope of a linear function from a graph?
  2. What is the general method to find intercepts of a function?
  3. How do you find the range of a function algebraically if the function is not given graphically?
  4. Can a function have more than one x-intercept or y-intercept?
  5. What is the difference between domain and range in the context of functions?

Tip:

When analyzing a graph, always check for points of discontinuity, where the function may not be defined for some x-values. This affects the domain!

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Math Problem Analysis

Mathematical Concepts

Functions
Graphing
Domain and Range
Intercepts

Formulas

Domain and range of a function
Finding intercepts from a graph

Theorems

Linear functions
Graph interpretation

Suitable Grade Level

Grades 8-10