8. One function, f(x), is defined as ƒ(x) = (x +4)' - 3 A second function, g(x), is a parabola that passes through the points shown in the table. 2 3 4 5 g(x) 4 3 12 19 What is the absolute value of the difference of the y-intercepts of fG) and g(x)? O 9 O 15 O 6 O 13

Algebra and Trigonometry (6th Edition)
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Author:Robert F. Blitzer
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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,...
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The problem statement is as follows:

**8.** One function, \( f(x) \), is defined as \( f(x) = (x+4)^2 - 3 \). A second function, \( g(x) \), is a parabola that passes through the points shown in the table below:

\[
\begin{array}{|c|c|c|c|c|c|}
\hline
x & 0 & 1 & 2 & 3 & 4 & 5 \\
\hline
g(x) & 4 & 3 & 4 & 7 & 12 & 19 \\
\hline
\end{array}
\]

The question asks: What is the absolute value of the difference of the y-intercepts of \( f(x) \) and \( g(x) \)?

- 9
- 15
- 6
- 13

In order to solve this problem, you need to find the y-intercepts of both functions \( f(x) \) and \( g(x) \).

- For \( f(x) = (x+4)^2 - 3 \), plug in \( x = 0 \) to find \( f(0) \):
  \[
  f(0) = (0+4)^2 - 3 = 16 - 3 = 13
  \]
  So the y-intercept of \( f(x) \) is 13.

- From the table, the y-intercept of \( g(x) \) (when \( x = 0 \)) is 4.

The absolute value of the difference between the y-intercepts is:
\[
|13 - 4| = 9
\]

The correct answer is **9**.
Transcribed Image Text:The problem statement is as follows: **8.** One function, \( f(x) \), is defined as \( f(x) = (x+4)^2 - 3 \). A second function, \( g(x) \), is a parabola that passes through the points shown in the table below: \[ \begin{array}{|c|c|c|c|c|c|} \hline x & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline g(x) & 4 & 3 & 4 & 7 & 12 & 19 \\ \hline \end{array} \] The question asks: What is the absolute value of the difference of the y-intercepts of \( f(x) \) and \( g(x) \)? - 9 - 15 - 6 - 13 In order to solve this problem, you need to find the y-intercepts of both functions \( f(x) \) and \( g(x) \). - For \( f(x) = (x+4)^2 - 3 \), plug in \( x = 0 \) to find \( f(0) \): \[ f(0) = (0+4)^2 - 3 = 16 - 3 = 13 \] So the y-intercept of \( f(x) \) is 13. - From the table, the y-intercept of \( g(x) \) (when \( x = 0 \)) is 4. The absolute value of the difference between the y-intercepts is: \[ |13 - 4| = 9 \] The correct answer is **9**.
### Problem 7: Pen Purchase Constraints

#### Context
Gary owns an office supply store. He needs to order black and red pens for resale. Each box of red pens costs $12, while each box of black pens costs $8. Gary has a budget constraint in which he can spend no more than $250 on the boxes of red and black pens combined. Additionally, he needs to order at least 10 boxes of black pens.

#### Question
What are the constraints that Gary must use to determine the possible combinations of red and black pens that he can order?

#### Answer Choices

1. **Choice A:**
   \[
   12r + 8b \geq 250 \quad \text{and} \quad r \geq 10
   \]

2. **Choice B:**
   \[
   8r + 12b < 250 \quad \text{and} \quad b \geq 10
   \]

3. **Choice C:**
   \[
   12r + 8b \leq 250 \quad \text{and} \quad r \leq 10
   \]

4. **Choice D:**
   \[
   12r + 8b \leq 250 \quad \text{and} \quad b \geq 10
   \]

#### Analysis
Gary’s constraints can be summarized as follows:
- **Budget Constraint:** The total cost of red and black pens must not exceed $250. This is represented by the inequality \(12r + 8b \leq 250\).
- **Minimum Order Requirement for Black Pens:** Gary needs to order at least 10 boxes of black pens, represented by \(b \geq 10\).

Thus, the correct set of constraints is represented by **Choice D**:
\[
12r + 8b \leq 250 \quad \text{and} \quad b \geq 10
\]
Transcribed Image Text:### Problem 7: Pen Purchase Constraints #### Context Gary owns an office supply store. He needs to order black and red pens for resale. Each box of red pens costs $12, while each box of black pens costs $8. Gary has a budget constraint in which he can spend no more than $250 on the boxes of red and black pens combined. Additionally, he needs to order at least 10 boxes of black pens. #### Question What are the constraints that Gary must use to determine the possible combinations of red and black pens that he can order? #### Answer Choices 1. **Choice A:** \[ 12r + 8b \geq 250 \quad \text{and} \quad r \geq 10 \] 2. **Choice B:** \[ 8r + 12b < 250 \quad \text{and} \quad b \geq 10 \] 3. **Choice C:** \[ 12r + 8b \leq 250 \quad \text{and} \quad r \leq 10 \] 4. **Choice D:** \[ 12r + 8b \leq 250 \quad \text{and} \quad b \geq 10 \] #### Analysis Gary’s constraints can be summarized as follows: - **Budget Constraint:** The total cost of red and black pens must not exceed $250. This is represented by the inequality \(12r + 8b \leq 250\). - **Minimum Order Requirement for Black Pens:** Gary needs to order at least 10 boxes of black pens, represented by \(b \geq 10\). Thus, the correct set of constraints is represented by **Choice D**: \[ 12r + 8b \leq 250 \quad \text{and} \quad b \geq 10 \]
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