Math Problem Statement

What is the correct piecewise function that matches the given graph, where three segments correspond to specific intervals of x?

Solution

The image shows a piecewise function graphed on a coordinate plane with three distinct segments and their corresponding conditions for xx. Below the graph, the user is trying to match each segment with its corresponding equation and domain restriction.

Here's the breakdown of what is visible:

  1. Graph Description:

    • Left segment: A horizontal line along the x-axis starting from x=10x = -10 and ending at x=3x = -3, inclusive at x=3x = -3, with the y-coordinate at 0.
    • Middle segment: A line with a positive slope, starting open at x=3x = -3 and ending at x=4x = 4 inclusive, passing through (1,1)(1, 1) and another point roughly around (3,1)(-3, -1).
    • Right segment: A downward sloping line starting at x=4x = 4 (exclusive) and continuing beyond x=10x = 10 with a negative slope.
  2. Equation Input Area:

    • The function is defined as a piecewise function with three segments:
      • The first condition for x3x \leq -3 correctly has a value of 0, corresponding to the horizontal line at y=0y = 0.
      • The second condition for 3<x4-3 < x \leq 4 is correctly defined as 27x17\frac{2}{7}x - \frac{1}{7}. This matches the middle segment with a positive slope.
      • The third condition for x>4x > 4 incorrectly shows 13x13-\frac{1}{3}x - \frac{1}{3}. There is an error warning, and this equation does not match the rightmost segment, which should have a negative slope but a different y-intercept.

Suggested Correction:

The equation for the third segment should be checked. Based on the graph, it appears the slope is negative, but the intercept might be wrong. You should adjust the equation to match the observed behavior of the graph.

Would you like help deriving the correct equation for the third segment or more details about how to solve this? Let me know if you'd like more steps to fix the equation.

Related Questions:

  1. How do you derive the equation of a line from two points on a graph?
  2. What is a piecewise function, and how is it used in real-world applications?
  3. How do you find the slope of a line on a graph?
  4. How can you verify the correctness of a piecewise function?
  5. What are the key differences between continuous and discontinuous functions?

Tip: When matching equations to a graph, always check if the slope and y-intercept align with the points on the line.

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Math Problem Analysis

Mathematical Concepts

Piecewise Functions
Linear Equations
Graphing

Formulas

y = mx + b (Slope-Intercept Form)

Theorems

Slope-Intercept Theorem

Suitable Grade Level

Grades 9-11