investigation 2a bl 3.notebook...title: investigation 2a bl 3.notebook subject: smart board...

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Investigation 2A BL 3.notebook 1 September 24, 2012 Sep 114:57 PM Getting ready for Ch 2 FUNCTIONS and POLYNOMIALS Key Ideas: Enter in BLUE BOOKS A polynomial is the sum of monomials 1.Define Monomial terms degree of a polynomial normal form of a polynomial identity X =0 Function Sep 117:33 PM HW p90 13 p 94 #9,10,11,&17 Sep 115:05 PM Sep 117:30 PM Sep 117:30 PM Investigation 2A What is a Function Composition of functions Inverse function Sep 117:08 PM 3/4

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Page 1: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

1

September 24, 2012

Sep 11­4:57 PM

Getting ready for Ch 2 FUNCTIONS  and POLYNOMIALSKey Ideas: Enter in BLUE BOOKS A polynomial is the sum of monomials 1.Define Monomial            terms            degree of a polynomial            normal form of a polynomial

     identity         

X  = 0

Function

Sep 11­7:33 PM

HW p90 1­3       p 94 #9,10,11,&17

Sep 11­5:05 PM Sep 11­7:30 PM

Sep 11­7:30 PM

Investigation 2AWhat is a FunctionComposition of functions Inverse function

Sep 11­7:08 PM

3 / 4

Page 2: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

2

September 24, 2012

Sep 11­7:41 PM

Do p97 #2­7

Sep 11­7:43 PM

Sep 11­7:55 PM

p99 #12pa

Sep 11­7:58 PM

Define the function above.

102

Sep 11­8:07 PM

Functions are determined by their behavior

103

Sep 11­8:14 PM

101

Page 3: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

3

September 24, 2012

Sep 11­8:24 PM

p98 #8­10,11,13

Sep 11­8:29 PM

Sep 16­10:44 PM Sep 16­10:52 PM

Warm Up DEFINE FUNCTION (BL BOOKS)

Sep 11­8:31 PM

2.2 GOALS:Getting Precise about functions

Use function notation        Decide if two rules define the same functionIMPORTANT: The domain of a function is part of the definition 

For every A there is one an only one B. What happens when you go to the soda machine and press the Pepsi button?f(A) = B

Sep 12­11:49 AM

Page 4: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

4

September 24, 2012

Sep 12­11:58 AM

Do 10­12, 14,16,17,19,23,24 

Sep 12­1:29 PM

Sep 12­1:30 PM

Domain:                  a

Target:

Range:

Domain:                  b

Target:

Range:

Domain:                  c

Target:

Range:

Domain:                  d

Target:

Range:

Domain:                  e

Target:

Range:

Domain:                  f

Target:

Range:

Domain:             g

Target:

Range:

Sep 12­1:31 PM

Sep 12­1:33 PM Sep 20­10:58 AM

Page 5: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

5

September 24, 2012

Sep 20­11:04 AM Sep 12­1:33 PM

2.3 Algebra with functions

Compose Functions

x  f(g(x))

f  g read f circle g or f composed with g

Sep 12­1:51 PM Sep 16­11:48 PM

Sep 12­1:51 PM

Express C(p) as a composite function

Sep 12­1:54 PM

Do p11 4­7

Page 6: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

6

September 24, 2012

Sep 12­1:57 PM

p112 # 2,3,8

p 113 # 11,13, 17­19

Sep 20­12:30 PM

Sep 20­12:32 PM Sep 20­11:42 AM

HOMEWORK QUIZABSOLUTELY NO TEXT BOOKS OPENED

p81 #2

p 94 # 9

p 98 11e

p108 #16 b

p108 #24 b and d

Sep 21­11:15 AM Sep 21­11:16 AM

Page 7: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

7

September 24, 2012

Sep 16­11:53 PM

Warm upWrite down your number and solution

Just give your ending number to your classmate and let them tell you the starting number. 

(cube the number)

Sep 16­11:58 PM

Starting Number

After subtracting 10

After squaring

After adding 7

starting number

After subtracting 10

After squaring

After Adding 7

input output input output

Sep 17­12:11 AM Sep 17­12:19 AM

Sep 23­9:13 AM

Is (x3 + x) a 1­1 function?Is (x3­ x) a 1­1 function?

x   x3 x3 + x x3 ­ x

­2 ­8 ­10 ­6

­1.5 ­3.375 ­4.875 ­1.875

­1 ­1 ­2 0

­0.5 ­.125 ­.625 .375

0 0 0 0

.5 .125 .625 ­.375

1 1 2 0

­6 ­5 ­4 ­3 ­2 ­1 0 1 2 3 4 5 6

­6

­5

­4

­3

­2

­1

1

2

3

4

5

6

x

y

­3 ­2 ­1 0 1 2 3

­3

­2

­1

1

2

3

x

y

Sep 23­9:50 AM

Page 8: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

8

September 24, 2012

Sep 23­9:51 AM Sep 23­9:52 AM

Sep 23­9:53 AM Sep 17­12:21 AM

y = x / 2  + 5To find the inverse orMake a list of the operations Work backwards

Use the definition f(f­1(x) = xf(f­1(x)) = f­1(x) / 2  + 5 = xSolve for f­1(x)

Sep 17­12:19 AM Sep 17­12:40 AM

Page 9: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

9

September 24, 2012

Sep 17­12:42 AM

­12 ­10 ­8 ­6 ­4 ­2 0 2 4 6 8 10

­8

­6

­4

­2

2

4

6

8

10

12

14

x

y

Sep 17­12:43 AM

Sep 17­12:46 AM Sep 23­10:02 AM

Quiz Tomorrow Investigation 2AUnderstand definition and notation:• function f(x)• inverse function f­1(x)• composition of functions    f     g• one to one• domain• range

Practice sheets for each of the sections on the last few pages of the pdf file for investigation 2AHW p 125 1­7

Sep 23­10:28 AM Sep 23­10:29 AM

Page 10: Investigation 2A BL 3.notebook...Title: Investigation 2A BL 3.notebook Subject: SMART Board Interactive Whiteboard Notes Keywords: Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF

Investigation 2A BL 3.notebook

10

September 24, 2012

Sep 23­10:30 AM Sep 23­10:33 AM

Sep 23­10:34 AM Sep 23­10:42 AM