Math Problem Statement

What is the inverse of the function f(x) = 2x – 10?

Solution

To find the inverse of the function f(x)=2x10f(x) = 2x - 10, follow these steps:

Steps:

  1. Replace f(x)f(x) with yy: y=2x10y = 2x - 10

  2. Swap xx and yy to solve for the inverse: x=2y10x = 2y - 10

  3. Solve for yy (the inverse function): x+10=2yx + 10 = 2y y=x+102y = \frac{x + 10}{2}

Thus, the inverse function is: f1(x)=x+102f^{-1}(x) = \frac{x + 10}{2}

Would you like more details or have any questions?

Here are 5 related questions:

  1. How can we verify that two functions are inverses of each other?
  2. What is the domain and range of the inverse function?
  3. How would the graph of a function and its inverse look like?
  4. What are the properties of inverse functions in general?
  5. Can every function have an inverse?

Tip: The graph of a function and its inverse are symmetric about the line y=xy = x.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inverse Functions
Linear Equations

Formulas

f^{-1}(x) = (x + 10)/2

Theorems

Inverse function theorem
Properties of inverse functions

Suitable Grade Level

Grades 9-11