Math Problem Statement

Use the graph of f(x) = log_3(x) to graph the function f(x) = log_3(x - 2).

Solution

The image shows a math question asking to graph the function f(x)=log3(x2)f(x) = \log_3(x - 2) using the graph of f(x)=log3(x)f(x) = \log_3(x).

To help with this:

  1. Original Function: The function f(x)=log3(x)f(x) = \log_3(x) is the base logarithmic function with base 3. Its graph has the following characteristics:

    • Domain: x>0x > 0
    • Vertical asymptote: x=0x = 0
    • The graph passes through (1,0)(1, 0), since log3(1)=0\log_3(1) = 0.
  2. Transformation: The new function f(x)=log3(x2)f(x) = \log_3(x - 2) represents a horizontal shift of the graph log3(x)\log_3(x) to the right by 2 units.

    • Domain: x>2x > 2 (since the argument of the logarithm, x2x - 2, must be positive)
    • Vertical asymptote: The asymptote moves from x=0x = 0 to x=2x = 2.

So, to graph f(x)=log3(x2)f(x) = \log_3(x - 2):

  • Take the graph of log3(x)\log_3(x) and shift every point 2 units to the right.
  • The new graph will have a vertical asymptote at x=2x = 2, and it will still pass through points like (3,0)(3, 0), since log3(32)=0\log_3(3 - 2) = 0.

Would you like to know more details or ask further questions? Here are some related questions:

  1. How do horizontal shifts affect the domain of a function?
  2. What is the general formula for a horizontal shift in logarithmic functions?
  3. How does a vertical shift change the graph of a logarithmic function?
  4. What other types of transformations can be applied to logarithmic functions?
  5. How can we find the x-intercept of the transformed function?

Tip: When graphing logarithmic functions, always check for vertical asymptotes and intercepts, as they give valuable information about the function's behavior.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Logarithmic Functions
Transformations
Graphing

Formulas

f(x) = log_b(x)
f(x) = log_b(x - c)

Theorems

Logarithmic Function Shift Theorem

Suitable Grade Level

Grades 9-12