Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.
Sagot :
Let's take this step by step to solve the given problem.
First, recall the functions [tex]\( f(x) = x^3 + 2 \)[/tex] and [tex]\( g(x) = x - 9 \)[/tex].
We are asked to perform the operation [tex]\(\left(\frac{f}{g}\right)(x)\)[/tex], which means we need to find:
[tex]\[ \left(\frac{f}{g}\right)(x) = \frac{f(x)}{g(x)} = \frac{x^3 + 2}{x - 9} \][/tex]
The domain restriction for this function occurs where the denominator is zero because division by zero is undefined. Therefore, we need to find the value of [tex]\( x \)[/tex] that makes the denominator [tex]\( g(x) = 0 \)[/tex]:
[tex]\[ x - 9 = 0 \implies x = 9 \][/tex]
Thus, we have the domain restriction [tex]\( x \neq 9 \)[/tex].
Now we can analyze the given options:
1. [tex]\(\frac{x^3 + 2}{x - 9}, x \neq -9\)[/tex]
2. [tex]\(\frac{x - 9}{x^3 + 2}, x \neq 9\)[/tex]
3. [tex]\(\frac{x^3 + 2}{x - 9}, x \neq 9\)[/tex]
4. [tex]\(\frac{x - 9}{x^3 + 2}, x \neq -9\)[/tex]
We already found that the correct form for [tex]\( \left(\frac{f}{g}\right)(x) \)[/tex] is:
[tex]\[ \left(\frac{f}{g}\right)(x) = \frac{x^3 + 2}{x - 9} \][/tex]
with the domain restriction [tex]\( x \neq 9 \)[/tex].
Now, let's evaluate the results of different options with specific input values for clarity:
Option 1: [tex]\(\left(\frac{f}{g}\right)(-9)\)[/tex]
[tex]\[ \left(\frac{-9^3 + 2}{-9 - 9}\right) = \frac{-729 + 2}{-18} = \frac{-727}{-18} = 40.388888888888886 \][/tex]
Option 2: [tex]\(\left(\frac{g}{f}\right)(9)\)[/tex]
[tex]\[ \left( \frac{9 - 9}{9^3 + 2}\right) = \frac{0}{729 + 2} = 0.0 \][/tex]
Option 3: [tex]\(\left(\frac{f}{g}\right)(9)\)[/tex]
[tex]\[ \frac{9^3 + 2}{9 - 9} = \frac{729 + 2}{0} \quad \text{undefined, as division by zero is not possible} \][/tex]
Option 4: [tex]\(\left(\frac{g}{f}\right)(-9)\)[/tex]
[tex]\[ \frac{-9 - 9}{(-9)^3 + 2} = \frac{-18}{-727} = 0.024759284731774415 \][/tex]
Given the correct domain restriction and the correct computed forms, the accurate options should be [tex]\(\frac{x^3 + 2}{x - 9}, x \neq 9\)[/tex].
Therefore, the correct answer is:
[tex]\[ \boxed{\frac{x^3 + 2}{x - 9}, x \neq 9} \][/tex]
First, recall the functions [tex]\( f(x) = x^3 + 2 \)[/tex] and [tex]\( g(x) = x - 9 \)[/tex].
We are asked to perform the operation [tex]\(\left(\frac{f}{g}\right)(x)\)[/tex], which means we need to find:
[tex]\[ \left(\frac{f}{g}\right)(x) = \frac{f(x)}{g(x)} = \frac{x^3 + 2}{x - 9} \][/tex]
The domain restriction for this function occurs where the denominator is zero because division by zero is undefined. Therefore, we need to find the value of [tex]\( x \)[/tex] that makes the denominator [tex]\( g(x) = 0 \)[/tex]:
[tex]\[ x - 9 = 0 \implies x = 9 \][/tex]
Thus, we have the domain restriction [tex]\( x \neq 9 \)[/tex].
Now we can analyze the given options:
1. [tex]\(\frac{x^3 + 2}{x - 9}, x \neq -9\)[/tex]
2. [tex]\(\frac{x - 9}{x^3 + 2}, x \neq 9\)[/tex]
3. [tex]\(\frac{x^3 + 2}{x - 9}, x \neq 9\)[/tex]
4. [tex]\(\frac{x - 9}{x^3 + 2}, x \neq -9\)[/tex]
We already found that the correct form for [tex]\( \left(\frac{f}{g}\right)(x) \)[/tex] is:
[tex]\[ \left(\frac{f}{g}\right)(x) = \frac{x^3 + 2}{x - 9} \][/tex]
with the domain restriction [tex]\( x \neq 9 \)[/tex].
Now, let's evaluate the results of different options with specific input values for clarity:
Option 1: [tex]\(\left(\frac{f}{g}\right)(-9)\)[/tex]
[tex]\[ \left(\frac{-9^3 + 2}{-9 - 9}\right) = \frac{-729 + 2}{-18} = \frac{-727}{-18} = 40.388888888888886 \][/tex]
Option 2: [tex]\(\left(\frac{g}{f}\right)(9)\)[/tex]
[tex]\[ \left( \frac{9 - 9}{9^3 + 2}\right) = \frac{0}{729 + 2} = 0.0 \][/tex]
Option 3: [tex]\(\left(\frac{f}{g}\right)(9)\)[/tex]
[tex]\[ \frac{9^3 + 2}{9 - 9} = \frac{729 + 2}{0} \quad \text{undefined, as division by zero is not possible} \][/tex]
Option 4: [tex]\(\left(\frac{g}{f}\right)(-9)\)[/tex]
[tex]\[ \frac{-9 - 9}{(-9)^3 + 2} = \frac{-18}{-727} = 0.024759284731774415 \][/tex]
Given the correct domain restriction and the correct computed forms, the accurate options should be [tex]\(\frac{x^3 + 2}{x - 9}, x \neq 9\)[/tex].
Therefore, the correct answer is:
[tex]\[ \boxed{\frac{x^3 + 2}{x - 9}, x \neq 9} \][/tex]
Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.