Math Problem Statement

Match the graph of the transformation of f with the correct equation shown.

Solution

Let's analyze the transformations of the graphs and match them to the correct equations:

General Transformation Rules:

  1. Vertical Stretch/Compression:

    • If y=2f(x)y = 2f(x), this represents a vertical stretch by a factor of 2.
    • If y=12f(x)y = \frac{1}{2}f(x), this represents a vertical compression.
  2. Horizontal Stretch/Compression:

    • If y=f(2x)y = f(2x), this represents a horizontal compression by a factor of 2.
    • If y=f(12x)y = f(\frac{1}{2}x), this represents a horizontal stretch.
  3. Horizontal Shift:

    • If y=f(x+2)y = f(x + 2), this shifts the graph left by 2 units.
  4. Vertical Shift:

    • If y=f(x)+2y = f(x) + 2, this shifts the graph up by 2 units.

Matching the Graphs:

  • Graph 14: The graph is vertically stretched. So, the corresponding equation should be y=2f(x)y = 2f(x) (Answer A).

  • Graph 15: The graph is compressed horizontally, which indicates the equation should be y=f(2x)y = f(2x) (Answer B).

  • Graph 16: The graph is shifted left by 2 units, which matches the equation y=f(x+2)y = f(x + 2) (Answer C).

  • Graph 17: The graph is shifted vertically up by 2 units, corresponding to the equation y=f(x)+2y = f(x) + 2 (Answer D).

Summary:

  • 14: y=2f(x)y = 2f(x) (A)
  • 15: y=f(2x)y = f(2x) (B)
  • 16: y=f(x+2)y = f(x + 2) (C)
  • 17: y=f(x)+2y = f(x) + 2 (D)

Would you like further details on how transformations affect the graphs?

Here are 5 related questions for practice:

  1. What is the effect of the transformation y=f(x3)y = f(x - 3) on the graph of f(x)f(x)?
  2. How would the graph of y=f(x)y = -f(x) differ from f(x)f(x)?
  3. If y=13f(x)y = \frac{1}{3}f(x), how does this transformation affect the original graph?
  4. How do you graph y=f(x1)+4y = f(x - 1) + 4?
  5. What happens if you apply both horizontal and vertical transformations simultaneously?

Tip: Always analyze whether transformations affect the graph vertically or horizontally based on whether they are inside or outside the function.

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Math Problem Analysis

Mathematical Concepts

Graph transformations
Functions

Formulas

y = 2f(x)
y = f(2x)
y = f(x + 2)
y = f(x) + 2

Theorems

Graph transformation rules

Suitable Grade Level

Grades 9-12