Week 5 - Chapter 2 & Quiz

Section 1

Section 2

Section 3

Section 4

Section 5

Quiz 3

*You must have Scientific Notebook to read and do quizzes*

Section 1 :

Read:

Pages 162-167

View:

• Translate a verbal expression into a variable expression or algebraic equation
• Application problems- solving equations

Do Exercises:

Page 168, #1-5, 15-33

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Section 2 :

Read:

Pages 172-178

Now is the time to learn to use your calculator programs on your graphing calculator. On the TI 82 or 83 press 2nd CALC 2 (root or zero) to access this feature. Set the lower bound for the calculation by moving the cursor to the left of the root (zero) and press ENTER . Set the upper bound by moving the cursor to the right of the root and press ENTER . Set your guess for the root by moving the cursor near the x-axis and pressing ENTER . An accurate approximation for the root will appear at the bottom of the screen. Your calculator program will also find points of intersection for two graphs. Study this program in your Appendix A Technology Guide A1-A24, or on pages xvii to xxi.

View:

• Identify intercepts and points of intersection

Do Exercises:

Page 179, #1-9, 13-17, 27-33, 37-43, 59-61

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Section 3 :

Read:

Pages 183-187

View:

• Use the imaginary unit i to write complex numbers
• Simplify complex numbers
• Add and subtract complex numbers
• Multiply complex numbers
• Complex conjugates
• Divide complex numbers

Do Exercises:

Page 189, #1-13, 25-35, 39-45, 57, 67, 71

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Section 4 :

Read:

Pages 191-201

On page the website college.hmco.com is a program for solving quadratic equations. Take the time to program this into your calculator; it is very useful.

View:

• Solve quadratic equations by factoring
• Solve quadratic equations by taking square roots
• Solve quadratic equations by completing the square
• Derive the quadratic formula using completing the square
• Solve quadratic equations by using the quadratic formula
• Solve equations by factoring - other than second degree
• Solve equations that are quadratic in form
• Solve equations containing one or more radical expressions
• Solve absolute value equations
• Application problems- solving quadratic equations

Do Exercises:

Page 205, #1-17, 45-71, 83-91, 99-107

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Section 5 :

Read:

Pages 210-218

Take special note of example 4 as this shows you how to solve inequalities on your calculator. Note: Examples 5, 6, 7, 8, 9 can all be done using your calculator. Try to do them algebraically, too.

View:

• Solve inequalities in one variable
• Solve compound inequalities
• Solve absolute value inequalities
• Solve nonlinear inequalities
• Find test intervals for rational inequalities in one variable
• Solve rational inequalities in one variable

Do Exercises:

Page 219, #1-33, 45-49, 59-63

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Quiz 3:

Submit Quiz 3 (10 points)

Go to the Quizzes section

This quiz will check your progress in the course and be sure that you are using the correct techniques to solve problems. The problems appearing on this quiz are similar to the problems you solved from the text and you should not have any difficulty with these problems if you understood the material covered in the text. All quizzes are open book but exams in the testing centers are not open book.

Quiz 3 includes:

• Solve equations that are linear, quadratic, involving radicals, fractions, absolute values and by using your calculator solve inequalities.
• Perform basic operations with complex numbers.
• Approximate points of intersection using your calculator.

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