Math Problem Statement

If p(x) is the linear parent function, which of the following is the graph of q(x) = −2p(x+1) A. B. C. D.

Solution

The function given is q(x)=2p(x+1)q(x) = -2p(x+1), and you want to find how this transformation affects the graph of p(x)p(x), which is the linear parent function.

  1. Parent function: The linear parent function is p(x)=xp(x) = x.

Thus, we can rewrite q(x)q(x) as: q(x)=2(x+1)q(x) = -2(x+1)

Now let's break down how the graph is transformed:

  • Horizontal shift: The term (x+1)(x+1) inside the function indicates a horizontal shift to the left by 1 unit.
  • Vertical stretch and reflection: The multiplication by 2-2 outside the function represents two things:
    • A reflection across the x-axis because of the negative sign.
    • A vertical stretch by a factor of 2, meaning the graph becomes steeper.

Summary of transformations:

  • Shift left by 1 unit.
  • Reflect across the x-axis.
  • Stretch vertically by a factor of 2.

To identify the graph:

Look for the following features in the graph:

  1. The slope of the line should be steep (a slope of 2-2).
  2. The line should be reflected (sloping downward instead of upward).
  3. The line should be shifted to the left by 1 unit.

Do you have the graphs (A, B, C, D) available to upload? I can analyze them directly to choose the correct one.

Would you like further details on any step? If you provide the graphs, I can select the correct one.

Meanwhile, here are some related questions:

  1. What happens if you shift p(x)p(x) by kk units to the right?
  2. How would a vertical compression affect the graph of p(x)p(x)?
  3. What transformation occurs with a positive coefficient instead of 2-2?
  4. Can you describe the graph of q(x)=p(x3)+2q(x) = p(x - 3) + 2?
  5. How does a reflection across the y-axis affect a function graph?

Tip: Always consider transformations inside parentheses as horizontal shifts and outside terms as vertical changes.

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Math Problem Analysis

Mathematical Concepts

Linear Functions
Function Transformations
Graphing

Formulas

q(x) = -2p(x+1)
p(x) = x (Linear Parent Function)

Theorems

Linear transformation properties
Shifts and stretches of functions

Suitable Grade Level

Grades 8-10