u (x) =x²+9 w (x) = Vx+8 Find the following.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter3: Functions
Section3.4: Operations On Functions
Problem 124E
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### Function Composition Evaluation

Suppose that the functions \( u \) and \( w \) are defined as follows:

\[ u(x) = \frac{x^2 + 9}{9} \]
\[ w(x) = \sqrt{x + 8} \]

Find the following compositions:

\[
\left( w \circ u \right) (8) = \quad \boxed{}
\]

\[
\left( u \circ w \right) (8) = \quad \boxed{}
\]

### Steps for Solving Composition of Functions

1. **Finding \( ( w \circ u )(8) \)**
   - First, evaluate \( u(8) \).
   - Then, use the result from \( u(8) \) as the input for \( w \).

2. **Finding \( ( u \circ w )(8) \)**
   - First, evaluate \( w(8) \).
   - Then, use the result from \( w(8) \) as the input for \( u \).

### Interactive Section
The image includes an interactive component where students can input their answers. The controls include options to check the answers (\( \square_{--}^{--}\)), reset the inputs (\( \rotate \)), and get hints or guidance (\( ? \)).

### User Navigation
At the bottom, there is a "Continue" button for progressing to the next part of the activity or lesson once the students have input their answers and are ready to move forward.
Transcribed Image Text:### Function Composition Evaluation Suppose that the functions \( u \) and \( w \) are defined as follows: \[ u(x) = \frac{x^2 + 9}{9} \] \[ w(x) = \sqrt{x + 8} \] Find the following compositions: \[ \left( w \circ u \right) (8) = \quad \boxed{} \] \[ \left( u \circ w \right) (8) = \quad \boxed{} \] ### Steps for Solving Composition of Functions 1. **Finding \( ( w \circ u )(8) \)** - First, evaluate \( u(8) \). - Then, use the result from \( u(8) \) as the input for \( w \). 2. **Finding \( ( u \circ w )(8) \)** - First, evaluate \( w(8) \). - Then, use the result from \( w(8) \) as the input for \( u \). ### Interactive Section The image includes an interactive component where students can input their answers. The controls include options to check the answers (\( \square_{--}^{--}\)), reset the inputs (\( \rotate \)), and get hints or guidance (\( ? \)). ### User Navigation At the bottom, there is a "Continue" button for progressing to the next part of the activity or lesson once the students have input their answers and are ready to move forward.
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