Intermediate Algebra – Student Workbook – Second Edition 2013

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$Lesson 2a – Assessment - Scottsdale Community College - Math Blog$

Lesson 5a - Introduction to Quadratic Functions Practice Problems 6. A company’s revenue earned from selling x items is given by the function R(x) = 680x, and cost is given by C(x) = 10000 + 2x 2 . a) Write a function, P(x), that represents the company’s profit from selling x items. b) Identify the vertical intercept of P(x). Write it as an ordered pair and interpret its meaning in a complete sentence. c) How many items must be sold in order to maximize the profit? d) What is the maximum profit? e) How many items does this company need to sell in order to break even? Scottsdale Community College Page 202 Intermediate Algebra
Lesson 5a - Introduction to Quadratic Functions Practice Problems 2 7. An arrow is shot straight up into the air. The function H ( t) 16t 90t 6 gives the height (in feet) of an arrow after t seconds. Round answers to two decimal places as needed. All answers must include appropriate units of measure. a) How long does it take for the arrow to reach its maximum height? Show your work. Write your answer in a complete sentence. b) Determine the maximum height of the arrow. Show your work. Write your answer in a complete sentence. c) How long does it take for the arrow to hit the ground? Show your work. Write your answer in a complete sentence. d) Identify the vertical intercept. Write it as an ordered pair and interpret its meaning in a complete sentence. e) Determine the practical domain of H(t). Use proper notation. f) Determine the practical range of H(t). Use proper notation. Scottsdale Community College Page 203 Intermediate Algebra
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Scottsdale Community College Interm
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Table of Contents Lesson 1a - Intro
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Lesson 1a - Introduction to Functio
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Lesson 1b - Linear Equations In the
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Lesson 1b - Linear Equations Mini-L
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Lesson 1b - Linear Equations Practi
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Lesson 2a - Linear Functions and Ap
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Lesson 2b - Functions and Function
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Lesson 3a - Introduction to Exponen
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Lesson 4a - Introduction to Logarit
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Lesson 6a - Exponents and Rational
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Lesson 6b - Rational Exponents & Ra
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Lesson 6b - Rational Exponents and
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Appendix A: You Try Answers Lesson
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Appendix A: You Try Answers You Try
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Intermediate Algebra – Student Workbook – Second Edition 2013

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