Login

Search the forums now!

Welcome, Guest. Please login or register.

November 02, 2025, 02:15:42 pm
Pages: [1] 2   Go Down

Author Topic: Modulas Graph - help  (Read 1846 times)  Share 

0 Members and 1 Guest are viewing this topic.

nbalakers24

  • Victorian
  • Forum Leader
  • ****
  • Posts: 672
  • Respect: +2
Modulas Graph - help
« on: January 19, 2010, 04:05:12 pm »
0
hi guys,

i need help with this equation
sketch

xE [-2pie, 2pie]
y= sin|x|

thanks, help appreciated
Logged

TrueTears

  • TT
  • Honorary Moderator
  • Great Wonder of ATAR Notes
  • *******
  • Posts: 16363
  • Respect: +667
Re: Modulas Graph - help
« Reply #1 on: January 19, 2010, 04:09:12 pm »
0
Sketch the graph of from

Next reflect the graph in the axis.

Done.
Logged
PhD @ MIT (Economics).

Interested in asset pricing, econometrics, and social choice theory.

nbalakers24

  • Victorian
  • Forum Leader
  • ****
  • Posts: 672
  • Respect: +2
Re: Modulas Graph - help
« Reply #2 on: January 19, 2010, 04:36:35 pm »
0
thanks TT
Logged

lakersfan_10

  • Victorian
  • Forum Regular
  • **
  • Posts: 62
  • Go Lakers!!!
  • Respect: +1
Re: Modulas Graph - help
« Reply #3 on: January 19, 2010, 05:47:07 pm »
0
with modulus graphs, do you have to express the domain as a hybrid function?
Logged

superflya

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1763
  • EL-Heat.
  • Respect: +8
Re: Modulas Graph - help
« Reply #4 on: January 19, 2010, 05:52:38 pm »
0
R ?
Logged
2010- English, Methods (CAS), Physics, Specialist, Chem.
2011- Bachelor of Commerce/Aerospace Engineering - Monash


"The day i stop learning, is the day i walk away from the game" Michael Jordan.

brightsky

  • Victorian
  • ATAR Notes Legend
  • *******
  • Posts: 3136
  • Respect: +200
Re: Modulas Graph - help
« Reply #5 on: January 19, 2010, 05:57:12 pm »
0
Quote from: lakersfan_10 on January 19, 2010, 05:47:07 pm
with modulus graphs, do you have to express the domain as a hybrid function?

Yeah the domain should be .
Logged
2020 - 2021: Master of Public Health, The University of Sydney
2017 - 2020: Doctor of Medicine, The University of Melbourne
2014 - 2016: Bachelor of Biomedicine, The University of Melbourne
2013 ATAR: 99.95

Currently selling copies of the VCE Chinese Exam Revision Book and UMEP Maths Exam Revision Book, and accepting students for Maths Methods and Specialist Maths Tutoring in 2020!

TrueTears

  • TT
  • Honorary Moderator
  • Great Wonder of ATAR Notes
  • *******
  • Posts: 16363
  • Respect: +667
Re: Modulas Graph - help
« Reply #6 on: January 19, 2010, 06:00:29 pm »
0
Eh, domain isn't in general...
Logged
PhD @ MIT (Economics).

Interested in asset pricing, econometrics, and social choice theory.

superflya

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1763
  • EL-Heat.
  • Respect: +8
Re: Modulas Graph - help
« Reply #7 on: January 19, 2010, 06:03:49 pm »
0
^^ my bad then :P
Logged
2010- English, Methods (CAS), Physics, Specialist, Chem.
2011- Bachelor of Commerce/Aerospace Engineering - Monash


"The day i stop learning, is the day i walk away from the game" Michael Jordan.

Ilovemathsmeth

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1370
  • Respect: +7
Re: Modulas Graph - help
« Reply #8 on: January 20, 2010, 12:09:13 am »
0
Theory:

You reflect because the modulus x considers only positive x values. Therefore it doesn't matter if you put in a neg value, it'll only become positive. Thus if you put in neg 2, the y-value will be the same as for pos 2. Hence the graph will be the same for neg x.

You need to remember that for translations, like log|x - 3| it will be different, i.e. the line of reflection isn't x = 0 but rather it is x = 3 as it is a log function shifted 3 units to the right.
Logged
Raw Scores:
Psychology 50 | Mathematical Methods 49 | Further Mathematics 49 | Accounting 49 | Chemistry 44 | English 43
ATAR: 99.75

stonecold

  • Victorian
  • Great Wonder of ATAR Notes
  • *******
  • Posts: 5335
  • Respect: +255
  • School Grad Year: 2010
Re: Modulas Graph - help
« Reply #9 on: January 20, 2010, 12:16:15 am »
0
yeah, first time you see modulus graphs you are like wtf!
you get used to them after a while.  they are actually really simple.  :)

nice explanation ilovemathmeths.
Logged
2011-13: BBiomed (Microbiology & Immunology Major) @ UniMelb


VCE 2009'10: English 46 | English Language 49 | Chemistry 50 | Biology 50 | Further Mathematics 48 | Mathematical Methods CAS 39
ATAR: 99.85

"Failure is not when one falls down but rather when one fails to get up" - unknown

nbalakers24

  • Victorian
  • Forum Leader
  • ****
  • Posts: 672
  • Respect: +2
Re: Modulas Graph - help
« Reply #10 on: January 20, 2010, 12:16:59 am »
0
thanks ilmm!

:D
Logged

Ilovemathsmeth

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1370
  • Respect: +7
Re: Modulas Graph - help
« Reply #11 on: January 20, 2010, 06:16:10 pm »
0
No probs :)

I don't do much working out on here because I'm TERRIBLE with LaTex. I really need to practice it more often.
Logged
Raw Scores:
Psychology 50 | Mathematical Methods 49 | Further Mathematics 49 | Accounting 49 | Chemistry 44 | English 43
ATAR: 99.75

the.watchman

  • Victorian
  • ATAR Notes Superstar
  • ******
  • Posts: 2526
  • Respect: +10
Re: Modulas Graph - help
« Reply #12 on: January 20, 2010, 06:18:48 pm »
0
Quote from: Ilovemathsmeth on January 20, 2010, 06:16:10 pm
No probs :)

I don't do much working out on here because I'm TERRIBLE with LaTex. I really need to practice it more often.

I constantly leave my browser open with the tab http://vcenotes.com/viki/index.php/Help:LaTeX
Then I can copy code across, until I can memorise it :D
Logged
Remember, remember the 5th of November

2010 - MM CAS (47) - Cisco 1+2 (pass :P)
2011 - Eng - Phys - Chem - Spesh - Latin - UMAT
ATAR - 99.00+ plz... :)

Feel free to PM me for anything :D

Ilovemathsmeth

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1370
  • Respect: +7
Re: Modulas Graph - help
« Reply #13 on: February 04, 2010, 12:10:51 am »
0
You're so dedicated :)
Logged
Raw Scores:
Psychology 50 | Mathematical Methods 49 | Further Mathematics 49 | Accounting 49 | Chemistry 44 | English 43
ATAR: 99.75

the.watchman

  • Victorian
  • ATAR Notes Superstar
  • ******
  • Posts: 2526
  • Respect: +10
Re: Modulas Graph - help
« Reply #14 on: February 04, 2010, 06:45:37 am »
0
Quote from: Ilovemathsmeth on February 04, 2010, 12:10:51 am
You're so dedicated :)

No, I hate having to shutdown my computer, so I just hibernate it.
I don't close my web browser for like months at a time :)
Logged
Remember, remember the 5th of November

2010 - MM CAS (47) - Cisco 1+2 (pass :P)
2011 - Eng - Phys - Chem - Spesh - Latin - UMAT
ATAR - 99.00+ plz... :)

Feel free to PM me for anything :D
Pages: [1] 2   Go Up