Math Problem Statement

Function f undergoes two transformations to become g. Express g(x) in terms of f(x).

Solution

The problem involves finding the correct transformation of the function f(x)f(x) to obtain g(x)g(x).

Analyzing the Graphs:

  1. Original Function f(x)f(x):

    • The orange curve represents f(x)f(x).
    • This is a rational function with vertical and horizontal asymptotes at x=0x = 0 and y=0y = 0, respectively.
  2. Transformed Function g(x)g(x):

    • The blue curve represents g(x)g(x).
    • Notice that g(x)g(x) is a reflection of f(x)f(x) about the x-axis, which implies a transformation of f(x)f(x) to f(x)-f(x).
  3. Horizontal Translation:

    • The graph of g(x)g(x) appears to be shifted to the right by 2 units when compared to f(x)f(x).
    • A horizontal shift to the right is represented by replacing xx with (x2)(x - 2) in the function.

Conclusion:

Given that g(x)g(x) is obtained by reflecting f(x)f(x) over the x-axis and then shifting it to the right by 2 units, the correct expression for g(x)g(x) in terms of f(x)f(x) is: g(x)=f(x2)g(x) = -f(x - 2) However, it seems the incorrect answer was selected as g(x)=f(x)+2g(x) = -f(x) + 2 on the provided options.

Would you like more details or have any questions?

Here are some related questions for further practice:

  1. What effect does shifting a function to the left have on its equation?
  2. How does reflecting a function over the y-axis change its equation?
  3. If a function is reflected over the x-axis and then shifted up, how would its equation change?
  4. How do horizontal shifts affect the domain of a function?
  5. What transformations would you apply to obtain the equation g(x)=f(x+3)g(x) = f(-x + 3) from f(x)f(x)?

Tip: Always remember that a horizontal shift to the right is represented by subtracting from the xx-value, while a shift to the left is represented by adding to the xx-value.

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Math Problem Analysis

Mathematical Concepts

Transformations of Functions
Reflections
Horizontal Shifts

Formulas

g(x) = -f(x - c) (Horizontal shift and reflection transformation formula)

Theorems

Transformation Theorem: Reflecting a function over the x-axis changes f(x) to -f(x), and shifting a function horizontally by c units changes f(x) to f(x - c)

Suitable Grade Level

Grades 9-12