Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Related questions
Topic Video
Question
Suppose that the functions q and r are defined as follows
![**Composing Two Functions: Basic**
### Presented Problem
Suppose that the functions \( q \) and \( r \) are defined as follows:
\[ q(x) = x - 1 \]
\[ r(x) = 2x^2 + 2 \]
### Tasks
Find the following values:
1. \[ (r \circ q)(-4) = \]
2. \[ (q \circ r)(-4) = \]
### Detailed Explanation
To solve these compositions, we need to apply the concept of function composition. The composite function \( (r \circ q)(x) \) is evaluated as \( r(q(x)) \), and \( (q \circ r)(x) \) is evaluated as \( q(r(x)) \).
1. **Evaluate \( (r \circ q)(-4) \)**:
- First, find \( q(-4) \):
\[ q(-4) = -4 - 1 = -5 \]
- Next, use this result in \( r(x) \):
\[ r(-5) = 2(-5)^2 + 2 = 2(25) + 2 = 50 + 2 = 52 \]
- Therefore, \( (r \circ q)(-4) = 52 \).
2. **Evaluate \( (q \circ r)(-4) \)**:
- First, find \( r(-4) \):
\[ r(-4) = 2(-4)^2 + 2 = 2(16) + 2 = 32 + 2 = 34 \]
- Next, use this result in \( q(x) \):
\[ q(34) = 34 - 1 = 33 \]
- Thus, \( (q \circ r)(-4) = 33 \).
The values to be filled in the boxes are:
1. \( (r \circ q)(-4) = 52 \)
2. \( (q \circ r)(-4) = 33 \)
### Visual Understanding
The image contains a simple interface with a space to input the calculated values and buttons likely for checking the answer, refreshing the question, and seeking help. The problem setup and the steps to solve these compositions have been provided in a textual format.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F64f54e3f-bbb2-46db-a1a9-bb995302d054%2Fa2f76162-5423-4552-8184-ec8c9f1fb4e7%2Fbn13w2b_reoriented.jpeg&w=3840&q=75)
Transcribed Image Text:**Composing Two Functions: Basic**
### Presented Problem
Suppose that the functions \( q \) and \( r \) are defined as follows:
\[ q(x) = x - 1 \]
\[ r(x) = 2x^2 + 2 \]
### Tasks
Find the following values:
1. \[ (r \circ q)(-4) = \]
2. \[ (q \circ r)(-4) = \]
### Detailed Explanation
To solve these compositions, we need to apply the concept of function composition. The composite function \( (r \circ q)(x) \) is evaluated as \( r(q(x)) \), and \( (q \circ r)(x) \) is evaluated as \( q(r(x)) \).
1. **Evaluate \( (r \circ q)(-4) \)**:
- First, find \( q(-4) \):
\[ q(-4) = -4 - 1 = -5 \]
- Next, use this result in \( r(x) \):
\[ r(-5) = 2(-5)^2 + 2 = 2(25) + 2 = 50 + 2 = 52 \]
- Therefore, \( (r \circ q)(-4) = 52 \).
2. **Evaluate \( (q \circ r)(-4) \)**:
- First, find \( r(-4) \):
\[ r(-4) = 2(-4)^2 + 2 = 2(16) + 2 = 32 + 2 = 34 \]
- Next, use this result in \( q(x) \):
\[ q(34) = 34 - 1 = 33 \]
- Thus, \( (q \circ r)(-4) = 33 \).
The values to be filled in the boxes are:
1. \( (r \circ q)(-4) = 52 \)
2. \( (q \circ r)(-4) = 33 \)
### Visual Understanding
The image contains a simple interface with a space to input the calculated values and buttons likely for checking the answer, refreshing the question, and seeking help. The problem setup and the steps to solve these compositions have been provided in a textual format.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Recommended textbooks for you

Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON

Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning

Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning

Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON

Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning

Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning

Algebra And Trigonometry (11th Edition)
Algebra
ISBN:
9780135163078
Author:
Michael Sullivan
Publisher:
PEARSON

Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:
9780980232776
Author:
Gilbert Strang
Publisher:
Wellesley-Cambridge Press

College Algebra (Collegiate Math)
Algebra
ISBN:
9780077836344
Author:
Julie Miller, Donna Gerken
Publisher:
McGraw-Hill Education