Math Problem Statement

The graph of the function f(x)=log10(x) is stretched vertically by a factor of 7, shifted to the left by 4 units, and shifted down by 5 units.

Find the equation of the function g(x) described above.

Note: If you are using log you need to type it in and use the subscript button on the keyboard. There is no log button. 

Solution

The given function is:
f(x)=log10(x)f(x) = \log_{10}(x)

Transformations Applied

  1. Vertical Stretch by 7 → Multiply f(x)f(x) by 7:
    g(x)=7log10(x)g(x) = 7\log_{10}(x)
  2. Shift Left by 4 → Replace xx with x+4x + 4:
    g(x)=7log10(x+4)g(x) = 7\log_{10}(x + 4)
  3. Shift Down by 5 → Subtract 5 from the function:
    g(x)=7log10(x+4)5g(x) = 7\log_{10}(x + 4) - 5

Final Answer

g(x)=7log10(x+4)5g(x) = 7\log_{10}(x + 4) - 5

Would you like a step-by-step explanation of how each transformation affects the graph?

Related Questions:

  1. How does a vertical stretch affect the shape of a logarithmic graph?
  2. What happens when a logarithmic function is shifted horizontally?
  3. How do you determine the new domain of a transformed logarithmic function?
  4. Can this function be rewritten in exponential form?
  5. How does shifting down by 5 affect the range of the function?

Tip:
Always apply horizontal transformations before vertical ones to avoid confusion in function modifications.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Logarithmic Functions
Transformations of Functions

Formulas

f(x) = log10(x)
Vertical Stretch: y = a * f(x)
Horizontal Shift: y = f(x + h)
Vertical Shift: y = f(x) + k

Theorems

Transformations of logarithmic functions

Suitable Grade Level

Grades 9-12