Math Problem Statement

Find the inverse of the function. y= x+8 Write your answer in the form a(bx+c)2+d, where a, b, c, and d are constants. Enter the domain of the inverse in the form: x≤# or x≥#. Simplify any fractions.

Solution

Let's find the inverse of the function y=x+8y = x + 8.

Step 1: Switch xx and yy

To find the inverse of a function, we switch xx and yy, then solve for yy: x=y+8x = y + 8

Step 2: Solve for yy

Isolate yy: y=x8y = x - 8

Step 3: Express the inverse in the required form

We need to express the inverse function in the form a(bx+c)2+da(bx + c)^2 + d. However, the given function is linear, not quadratic. Thus, rewriting it in quadratic form as requested is impossible since the inverse is simply a line. Therefore, the inverse function is: y=x8y = x - 8

Step 4: Domain of the inverse

Since there are no restrictions on xx in the original function, the domain of the inverse function is all real numbers. So, the domain can be written as xx \geq -\infty.

However, since you asked for the domain in a specific form, we can write: xx \geq -\infty which encompasses all real numbers.

Summary:

  • Inverse function: y=x8y = x - 8
  • Domain of the inverse: xx \geq -\infty

Would you like further details, or do you have any questions?

Here are 5 related questions:

  1. How do you find the inverse of a quadratic function?
  2. What is the domain of a function's inverse when the original function is a parabola?
  3. Can a linear function have an inverse that is not linear?
  4. What happens to the range of the original function when finding the inverse?
  5. How can you verify if two functions are inverses of each other?

Tip: The domain of the inverse function is the range of the original function.

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Math Problem Analysis

Mathematical Concepts

Inverse Functions
Linear Equations

Formulas

y = x + 8
Inverse function: switch x and y, solve for y

Theorems

Inverse Function Theorem

Suitable Grade Level

Grades 10-12