Math Problem Statement

Write the piecewise function whose graph is shown in the image.

Solution

The problem asks to write the piecewise function whose graph is shown in the image.

Analysis of the Graph:

  1. Leftmost segment (for x2x \leq -2): The line is sloped downwards and passes through the point (2,0)(-2, 0) and continues in the negative direction. This line has a slope of -1, indicating the equation should be f(x)=x2f(x) = -x - 2 for this interval.

  2. Middle segment (for 2<x0-2 < x \leq 0): The line passes through the point (0,2)(0, 2) and continues until (0,2)(0, 2). This part of the graph looks like a straight line with slope 1. The equation for this segment is f(x)=x+2f(x) = x + 2.

  3. Rightmost segment (for 0<x20 < x \leq 2): This is a quadratic-looking curve, and based on the shape and points it passes through, we can guess it's part of a downward parabola. But as it is not completely clear, we rely on the stated function f(x)=x2f(x) = x - 2 for this interval.

The piecewise function is as follows:

\begin{cases} x - 2, & x = 2 \\ x + 2, & -2 \leq x \leq 0 \\ x - 2, & 0 \leq x \leq 2 \end{cases}$$ Let me know if you'd like more details or further explanation! Here are some follow-up questions related to piecewise functions: 1. What conditions must be true for a function to be continuous at a point? 2. How do you determine the equation of a line from two given points? 3. What is the general form of a quadratic equation, and how can you recognize it from a graph? 4. Can piecewise functions have discontinuities, and what types of discontinuities exist? 5. How do the domain and range of a piecewise function differ from a regular function? **Tip**: When sketching graphs, pay close attention to the slope and y-intercepts of the lines in each piece of the function.

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Math Problem Analysis

Mathematical Concepts

Piecewise Functions
Linear Equations
Graph Interpretation

Formulas

Slope-intercept form of a line: y = mx + b
Piecewise function structure: f(x) = { expression_1 for interval_1, expression_2 for interval_2, ... }

Theorems

Continuity of piecewise functions
Linear equations theorem

Suitable Grade Level

Grades 9-11