Math Problem Statement

The function g(x), graphed below, is a transformation of the function f(x) = |x|. Write the formula for g(x).

Solution

The graph provided shows the function g(x)g(x), which is a transformation of the function f(x)=xf(x) = |x|.

The graph appears to have the following transformations:

  1. Reflection: The graph reflects the absolute value function over the x-axis to the left of x=0x = 0 (i.e., for x<0x < 0).
  2. Vertical Translation: The vertex of the graph is moved downward to (0,3)(0, -3).
  3. Shift: The absolute value function seems to be unchanged in terms of stretch or compression, but shifted downward by 3 units.

Thus, the transformation can be described as a vertical shift downward by 3 units and possibly a reflection of the left side of the function.

The function g(x)g(x) can be written as: g(x)=x3g(x) = -|x| - 3 This means the graph has undergone:

  • A vertical reflection (for negative values of xx).
  • A downward shift of 3 units.

Would you like further explanation on how to derive the transformation, or do you have any specific questions?

Here are 5 related questions:

  1. How do you determine reflections in function transformations?
  2. What effect does a vertical shift have on a graph?
  3. How would the function change if the graph were shifted 2 units to the right instead?
  4. What does it mean when a function is reflected over the x-axis?
  5. Can you apply multiple transformations, such as both horizontal and vertical shifts?

Tip: When shifting a function vertically, the transformation is directly applied to the output of the function, which is why you see constants added or subtracted outside the absolute value term.

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Math Problem Analysis

Mathematical Concepts

Function Transformations
Absolute Value Functions
Reflections
Vertical Shifts

Formulas

g(x) = -|x| - 3

Theorems

Transformation of functions
Reflection over the x-axis
Vertical shift of functions

Suitable Grade Level

Grades 9-12