Math Problem Statement

What equation would transform the parent function y = f(x) into the new graph depicted in the image?

Solution

To solve the transformation problem depicted in the image, let's analyze the given graph and the parent function.

Step 1: Identify the Parent Function

The parent function appears to be y=xy = |x|, which is the absolute value function. This is indicated by the V-shaped graph.

Step 2: Identify the Transformations

We need to determine how the parent function y=xy = |x| is transformed into the red dashed graph.

  • Vertical Stretch/Compression: Compare the slope of the lines. The parent function has a slope of 11 (or 1-1 on the left side), but the red dashed graph has a slope of 32\frac{3}{2} (or 32-\frac{3}{2} on the left side). This indicates a vertical stretch by a factor of 32\frac{3}{2}.

  • Horizontal Translation: There is no horizontal shift, as the vertex remains at the origin (0,0)(0, 0).

  • Vertical Translation: The red graph is shifted downward by 2 units, so a vertical translation of 2-2 is applied.

Step 3: Write the Transformation Equation

The transformed equation for the red graph, based on the transformations identified, is:

g(x)=32f(x)2g(x) = \frac{3}{2}f(x) - 2

Substituting the parent function f(x)=xf(x) = |x|:

g(x)=32x2g(x) = \frac{3}{2}|x| - 2

This equation should transform the parent function into the red dashed graph.

Would you like more details or have any questions about the solution?

Further Questions:

  1. How would the graph look if the parent function was y=x2y = x^2 instead of y=xy = |x|?
  2. What would happen if the graph were translated 3 units to the right?
  3. How would the equation change if the graph were stretched horizontally instead of vertically?
  4. What is the effect of changing the vertical translation from 2-2 to +2+2?
  5. How do you determine the vertex of the transformed graph?

Tip:

When analyzing transformations, always start with identifying basic shifts (vertical/horizontal translations) before moving to stretches, compressions, or reflections.

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Math Problem Analysis

Mathematical Concepts

Algebra
Transformations of Functions
Absolute Value Functions

Formulas

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

Theorems

Transformation Theorems
Linear Scaling and Translation

Suitable Grade Level

Grades 9-11