Math Problem Statement

describe the transformation from the parent function |x| of y=|x+4|-2

Solution

The transformation from the parent function y=xy = |x| to the function y=x+42y = |x+4| - 2 involves three distinct steps:

  1. Horizontal Shift:

    • The expression x+4|x + 4| inside the absolute value indicates a horizontal shift.
    • Since it's x+4x + 4, this represents a leftward shift of 4 units. The general rule is that y=xhy = |x - h| shifts the graph hh units horizontally. Here, h=4h = -4, so the graph shifts 4 units to the left.
  2. Vertical Shift:

    • The "-2" outside the absolute value affects the vertical position of the graph.
    • This represents a downward shift of 2 units. The general rule is that y=x+ky = |x| + k shifts the graph kk units vertically. In this case, k=2k = -2, so the graph shifts down 2 units.
  3. No Stretch or Reflection:

    • There are no multiplicative factors affecting the steepness or orientation of the graph, so there is no vertical stretch or reflection.

Summary of Transformations:

  • Shift the graph of y=xy = |x| 4 units to the left.
  • Then, shift the resulting graph 2 units down.

Do you have any questions or want further details?

Related Questions:

  1. What would happen if the function was y=x4+2y = |x-4| + 2?
  2. How do vertical stretches or compressions affect the graph of y=xy = |x|?
  3. What if there were a negative sign outside the absolute value, like y=x+42y = -|x+4| - 2?
  4. Can you explain how to find the vertex of an absolute value function from its equation?
  5. How do you solve for xx when given an equation in the form y=x+42y = |x+4| - 2?

Tip:

For absolute value transformations, focus first on what's inside (horizontal shifts) and then what's outside (vertical shifts and stretches).

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Absolute Value Functions
Graph Transformations

Formulas

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

Theorems

Horizontal Shift: y = |x - h| shifts the graph horizontally by h units
Vertical Shift: y = |x| + k shifts the graph vertically by k units

Suitable Grade Level

Grades 9-11