Math Problem Statement

A logarithmic child function has domain of (-2, ∞). What is the range of the exponential child function that is its inverse?

Solution

The problem asks about the range of an exponential function, which is the inverse of a logarithmic function with a given domain.

Key Information:

  • The domain of the logarithmic function is (2,)(-2, \infty).
  • The exponential function is the inverse of the logarithmic function.
  • The domain of the logarithmic function becomes the range of its inverse (exponential) function.

Explanation:

The domain of a logarithmic function becomes the range of its inverse, the exponential function, and vice versa. Therefore, since the logarithmic function has a domain of (2,)(-2, \infty), this will also be the range of the inverse exponential function.

Thus, the range of the exponential function is: (2,)\boxed{(2, \infty)}

The correct answer is B: (2,)(2, \infty).


Would you like further clarification? Here are five related questions to expand on this topic:

  1. What is the relationship between the domain and range of inverse functions in general?
  2. How do you find the inverse of a logarithmic function algebraically?
  3. What are some transformations that can shift the domain of a logarithmic function?
  4. How does the base of a logarithmic function affect its inverse?
  5. Can the domain of a logarithmic function include negative numbers, and why?

Tip: When dealing with logarithmic functions, always check the domain carefully since logs are only defined for positive inputs.

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Math Problem Analysis

Mathematical Concepts

Logarithmic Functions
Exponential Functions
Inverse Functions

Formulas

If f(x) is a logarithmic function, then its inverse is an exponential function: f⁻¹(x) = a^x, where a is the base.

Theorems

The domain of a function becomes the range of its inverse, and vice versa.

Suitable Grade Level

Grades 10-12