ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29...

6
ALG 2 Sec 5.1 NOTES & WORK.notebook 1 November 14, 2013 ALGEBRA 2 Sec 5.1 GRAPHING QUADRATIC FUNCTIONS QUADRATIC FUNCTIONS: Different Forms NOTE: The DISCRIMINANT In other words, the DISCRIMINANT tells us the type of type of solutions for f(x) = . . . = 0, which tells us the # of xintercepts:

Transcript of ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29...

Page 1: ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29 cont: #29 cont: This is a "Ghetto Sketch" (Your sketch needs to be more accurate)

ALG 2 Sec 5.1 NOTES & WORK.notebook

1

November 14, 2013

ALGEBRA 2Sec 5.1 GRAPHING QUADRATIC FUNCTIONS

QUADRATIC FUNCTIONS: Different Forms

NOTE: The DISCRIMINANT

In other words, the DISCRIMINANT tells us the type of type of solutions for f(x) = . . . = 0, which tells us the # of x­intercepts:

Page 2: ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29 cont: #29 cont: This is a "Ghetto Sketch" (Your sketch needs to be more accurate)

ALG 2 Sec 5.1 NOTES & WORK.notebook

2

November 14, 2013

Sec 5.1 #21 continued:

x

­1 0 1 2 3 4 5 6 7­2

123456789101112131415161718192021222324

x

ySec 5.1 #21 continued:

#29 cont:

Page 3: ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29 cont: #29 cont: This is a "Ghetto Sketch" (Your sketch needs to be more accurate)

ALG 2 Sec 5.1 NOTES & WORK.notebook

3

November 14, 2013

#29 cont:#29 cont: This is a "Ghetto Sketch"

(Your sketch needs to be more accurate)

­8 ­7 ­6 ­5 ­4 ­3 ­2 ­1 0 1

24681012141618202224262830323436384042444648505254

x

y

#29 cont: #29 Graphing it using the Mother Function Method

Page 4: ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29 cont: #29 cont: This is a "Ghetto Sketch" (Your sketch needs to be more accurate)

ALG 2 Sec 5.1 NOTES & WORK.notebook

4

November 14, 2013

Intercept Form gives you the x­intercepts right away

BUT with my special graphing checklist, you were asked to do parts A thru I:

NOTE: In intercept form, you can see the x­ints here:

#35 continued:

Page 5: ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29 cont: #29 cont: This is a "Ghetto Sketch" (Your sketch needs to be more accurate)

ALG 2 Sec 5.1 NOTES & WORK.notebook

5

November 14, 2013

#35 cont: #35 cont:

#31 continued:

original

Mom steeper

& opens up(narrower)

Right 3

GRAPHING: Mom Fcn Method(an alternative method)

Page 6: ALG 2 Sec 5.1 NOTES & WORK.notebook · ALG 2 Sec 5.1 NOTES & WORK.notebook 3 November 14, 2013 #29 cont: #29 cont: This is a "Ghetto Sketch" (Your sketch needs to be more accurate)

ALG 2 Sec 5.1 NOTES & WORK.notebook

6

November 14, 2013

­1 0 1 2 3 4 5 6 7

123456789101112131415161718192021222324

x

y

#31 continued:

#47 continued: