Math Problem Statement

The graph shows g(x), which is a transformation of f(x) = |x|. Write the function rule for g(x).

Solution

The given graph shows a transformation of the function f(x)=xf(x) = |x|. The original absolute value function has its vertex at (0,0)(0, 0) and opens upward with a slope of 1 on both sides.

Analyzing the Transformation:

From the graph, we observe the following:

  1. Vertex Shift: The vertex of the new function g(x)g(x) is located at (2,0)(-2, 0), indicating a horizontal shift to the left by 2 units.
  2. Vertical Stretch: The graph opens upward and appears narrower than the basic absolute value function, indicating a vertical stretch. The slope of the right side of the V is 2 instead of 1, so the function has been vertically stretched by a factor of 2.

Writing the Transformation:

The general form of the transformation for an absolute value function is: g(x)=axh+kg(x) = a |x - h| + k Where:

  • aa is the vertical stretch or compression factor.
  • hh represents the horizontal shift (right or left).
  • kk represents the vertical shift (up or down).

In this case:

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Math Problem Analysis

Mathematical Concepts

Absolute Value Functions
Graph Transformations

Formulas

g(x) = a|x - h| + k

Theorems

Transformation of functions

Suitable Grade Level

Grades 9-10