Math Problem Statement
find the x and y intercepts of g(x) = 2 log (5(x-1))+4
Solution
To find the - and -intercepts of the function , we will follow these steps:
1. Find the -Intercept
The -intercept occurs where .
Substitute into the function:
However, the logarithm of a negative number is undefined in the real number system. Therefore, there is no -intercept for this function.
2. Find the -Intercept
The -intercept occurs where .
Set the function equal to zero:
Subtract 4 from both sides:
Divide both sides by 2:
Rewrite the equation in exponential form:
Simplify to get:
Divide both sides by 5:
Add 1 to both sides:
Final Answers:
- -intercept: None (because the logarithm of a negative number is undefined).
- -intercept: or approximately .
Would you like more details on any step or have any other questions?
Here are some related questions you might find interesting:
- What are the domain and range of ?
- How would the function change if the base of the logarithm were different?
- Can we find asymptotes for the function ?
- What are the critical points of ?
- How would you graph this function?
- What happens to the intercepts if we add a constant to the function?
- How does the function behave as approaches infinity?
- What are the transformations applied to the base function in this equation?
Tip: When solving logarithmic equations, always check the domain to avoid taking the logarithm of a negative number or zero.
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Math Problem Analysis
Mathematical Concepts
Logarithms
Formulas
-
Theorems
-
Suitable Grade Level
Grades 10-12