Unit 6 Quadratic Word Problems
MPM 2DI: 2010-2011
UNIT 6
QUADRATIC WORD PROBLEMS
Date Day 3: Tue Feb 22 Day 4: Wed Feb 23 Day 1: Thu Feb 24 Day 2: Fri Feb 25 Day 3: Mon Feb8 Day 4: Tue Mar 1 Day 1: Wed Mar 2 Day 2: Thu Mar 3 Day 3: Fri Mar 4 Day 4: Mon Mar 7 Day 1: Tue Mar 8 Day 2: Wed Mar 9 Day 3: Thu Mar 10 Day 4: Fri Mar 11
Day 1: Mon Mar 21 Day 2: Tue Mar 22
Pages 2-3 4-5 6-7 8-9 10-11
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Text
4.6 4.7 4.7
Title Quadratic Word Problems
Practice Handout
Quadratic Word Problems Page 391-393 #11, 14, 15, 18, 20
Quadratic Word Problems Page 404-407 #12, 14, 16, 17, 18
Quadratic Word Problems Page 404-407 # 19, 24-28
Review
Handout
Test
Quadratic Word Problem Assignment
MARCH BREAK
Quadratic Word Problem Assignment
LEARNING GOAL:
In this unit, we will focus on PROBLEM SOLVING related to applications of quadratic equations.
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QUADRATIC WORD PROBLEMS
Determining Maximum and Minimum Values
Example 1 A model rocket is launched from the roof of a building. Its flight path is modeled by h = -5t 2 + 30t + 10 where h is the height of the rocket above the ground in metres and t is the time after the launch in seconds.
What is the rocket's maximum height?
Example 2
A rectangular field will be fenced on all four sides. There will also be a line of fence across the field, parallel to the shorter side.
If 900 m of fencing are available, what dimensions of the field will produce the maximum area? What is the maximum area?
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Example 3 Tickets to a school dance cost $4 and the projected attendance is 300 people. For every $0.10 increase in ticket price, the dance committee projects that attendance will decrease by 5. a) Determine the dance committee's greatest possible revenue.
b) What ticket price will produce the greatest revenue?
Homework Page 391-393 #11, 14, 15, 18, 20
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