The equation P = - 0.002t +0.54t + 16.5 models the approximate number (in millions) of female college students in a country for the academic years 2005-2009, with t=0 representing 2005. a. Sketch the graph of the equation. b. Find the P-intercept. What does it represent? a. Choose the correct graph below. OB. AP 20.0어 Oc. 20.0.P OD. 20.0P 20.0-T" 14.0- 14.0- 14.0- 14.0+

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,...
icon
Related questions
icon
Concept explainers
Question
**2.2.100**

The equation \( P = -0.002t^2 + 0.54t + 16.5 \) models the approximate number (in millions) of female college students in a country for the academic years 2005-2009, with \( t = 0 \) representing 2005.

a. Sketch the graph of the equation.

b. Find the P-intercept. What does it represent?

---

**a. Choose the correct graph below:**

- **Option A:**
  - The graph shows a downward-opening parabola on a coordinate plane. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6.
  
- **Option B:**
  - The graph shows a straight, positively sloping line on a coordinate plane. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6.
  
- **Option C:**
  - The graph shows a curve that appears to be incorrectly depicted. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6.
  
- **Option D:**
  - The graph shows an upward-opening parabola on a coordinate plane. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6.

---

**Explanation and Solution:**

- **Graph Sketch and Analysis:**
  - The given quadratic equation is \( P = -0.002t^2 + 0.54t + 16.5 \). The negative coefficient of \( t^2 \) indicates that the parabola opens downwards.

- **P-intercept:**
  - To find the P-intercept, set \( t = 0 \) in the equation: 
    \( P = -0.002(0)^2 + 0.54(0) + 16.5 \).
    Thus, \( P = 16.5 \).
  - The P-intercept is 16.5, which represents the approximate number (in millions
Transcribed Image Text:**2.2.100** The equation \( P = -0.002t^2 + 0.54t + 16.5 \) models the approximate number (in millions) of female college students in a country for the academic years 2005-2009, with \( t = 0 \) representing 2005. a. Sketch the graph of the equation. b. Find the P-intercept. What does it represent? --- **a. Choose the correct graph below:** - **Option A:** - The graph shows a downward-opening parabola on a coordinate plane. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6. - **Option B:** - The graph shows a straight, positively sloping line on a coordinate plane. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6. - **Option C:** - The graph shows a curve that appears to be incorrectly depicted. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6. - **Option D:** - The graph shows an upward-opening parabola on a coordinate plane. The y-axis (labeled as P) ranges from 14.0 to 20.0, and the x-axis (labeled as t) ranges from 0 to 6. --- **Explanation and Solution:** - **Graph Sketch and Analysis:** - The given quadratic equation is \( P = -0.002t^2 + 0.54t + 16.5 \). The negative coefficient of \( t^2 \) indicates that the parabola opens downwards. - **P-intercept:** - To find the P-intercept, set \( t = 0 \) in the equation: \( P = -0.002(0)^2 + 0.54(0) + 16.5 \). Thus, \( P = 16.5 \). - The P-intercept is 16.5, which represents the approximate number (in millions
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Points, Lines and Planes
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.
Similar questions
Recommended textbooks for you
Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON
Contemporary Abstract Algebra
Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra And Trigonometry (11th Edition)
Algebra And Trigonometry (11th Edition)
Algebra
ISBN:
9780135163078
Author:
Michael Sullivan
Publisher:
PEARSON
Introduction to Linear Algebra, Fifth Edition
Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:
9780980232776
Author:
Gilbert Strang
Publisher:
Wellesley-Cambridge Press
College Algebra (Collegiate Math)
College Algebra (Collegiate Math)
Algebra
ISBN:
9780077836344
Author:
Julie Miller, Donna Gerken
Publisher:
McGraw-Hill Education