Math Problem Statement

Find the composition f(g(x)) where f(x) = 4x - 14 and g(x) = x^2 - 4x - 3.

Solution

The image provides two functions:

f(x)=4x14f(x) = 4x - 14 g(x)=x24x3g(x) = x^2 - 4x - 3

We are asked to find f(g(x))f(g(x)), which is the composition of the functions ff and gg. This means we will substitute g(x)g(x) into f(x)f(x).

Steps to find f(g(x))f(g(x)):

  1. Start by substituting g(x)=x24x3g(x) = x^2 - 4x - 3 into f(x)=4x14f(x) = 4x - 14.

    So, f(g(x))=f(x24x3)f(g(x)) = f(x^2 - 4x - 3).

  2. Apply the function ff to g(x)g(x):

    f(g(x))=4(x24x3)14f(g(x)) = 4(x^2 - 4x - 3) - 14

  3. Now, distribute the 4 inside the parentheses:

    f(g(x))=4x216x1214f(g(x)) = 4x^2 - 16x - 12 - 14

  4. Combine like terms:

    f(g(x))=4x216x26f(g(x)) = 4x^2 - 16x - 26

So, the composition f(g(x))f(g(x)) is:

f(g(x))=4x216x26f(g(x)) = 4x^2 - 16x - 26

Would you like further details or clarifications on any part of this solution?

Related Questions:

  1. What is the composition g(f(x))g(f(x)) using the same functions?
  2. How would you solve f(g(x))=0f(g(x)) = 0?
  3. Can you find the inverse of f(x)f(x) or g(x)g(x)?
  4. What are the roots of g(x)=0g(x) = 0?
  5. What does the graph of f(g(x))f(g(x)) look like?

Tip:

When composing functions, make sure to replace the entire input variable in the outer function with the inner function's expression.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Function Composition
Quadratic Functions
Algebra

Formulas

f(g(x)) = f(x^2 - 4x - 3) = 4(x^2 - 4x - 3) - 14

Theorems

Function Composition

Suitable Grade Level

Grades 9-11