Math Problem Statement

Sketch a graph of f(x) = {1 if x <= -1, -2x - 1 if -1 < x <= 2, -3 if x > 2}

Solution

Here is the graph of the piecewise function f(x)f(x) based on the provided conditions. The graph shows the three segments of the function:

  1. A horizontal line at y=1y = 1 for x1x \leq -1.
  2. A line segment from (1,1)(-1, -1) to (2,5)(2, -5).
  3. A horizontal line at y=3y = -3 for x>2x > 2.

Please let me know if you need any more details or have any questions.

Follow-up Questions:

  1. What are the values of f(x)f(x) at the boundary points x=1x = -1 and x=2x = 2?
  2. How would the graph change if the condition x>2x > 2 changed to x2x \geq 2?
  3. What is the domain and range of the given piecewise function?
  4. How can we find the slope of the line segment for 1<x2-1 < x \leq 2?
  5. What is the significance of open and closed dots in a graph of a piecewise function?

Tip:

When graphing piecewise functions, always carefully check the domain of each piece and use open or closed dots to denote whether a point is included in the segment.

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Math Problem Analysis

Mathematical Concepts

Piecewise Functions
Linear Equations
Graphing

Formulas

f(x) = -2x - 1 for -1 < x <= 2

Theorems

Definition of Piecewise Functions

Suitable Grade Level

Grades 9-12