Math Problem Statement

The given figure shows a transformation of the graph of f(x) = |x|. Write the equation for the transformed graph.

Solution

To analyze the transformation of the function f(x)=xf(x) = |x| as shown in the graph:

  1. The original graph of f(x)=xf(x) = |x| is a V-shaped graph with a vertex at the origin (0, 0) and an upward direction.
  2. The transformed graph has a vertex shifted from the origin to (0,3)(0, -3), indicating a vertical translation downward by 3 units.
  3. Additionally, the transformed graph opens downward instead of upward, which signifies a vertical reflection across the x-axis.

Given these transformations:

  • Reflecting f(x)=xf(x) = |x| vertically results in x-|x|.
  • Shifting it downward by 3 units modifies it to x3-|x| - 3.

Therefore, the equation for the transformed graph is: y=x3y = -|x| - 3

Would you like further explanation on this transformation process or have additional questions?

Here are some related questions to deepen your understanding:

  1. What transformations would result in shifting f(x)=xf(x) = |x| up by 4 units and reflecting it horizontally?
  2. How would the equation change if the vertex of the graph was moved to (2,3)(2, -3)?
  3. What is the general formula for shifting an absolute value function horizontally and vertically?
  4. How does the absolute value function behave when multiplied by a constant greater than 1 or between 0 and 1?
  5. What impact does a horizontal reflection have on the absolute value function's equation?

Tip: Remember that vertical shifts affect the constant term, while reflections across the x-axis change the sign of the entire function.

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Math Problem Analysis

Mathematical Concepts

Transformations of Functions
Absolute Value Functions
Reflections
Vertical Translations

Formulas

y = |x|
y = a|x - h| + k

Theorems

Transformation Theorem for Functions

Suitable Grade Level

Grades 9-10