S.O.S. Mathematics CyberBoard

Your Resource for mathematics help on the web!
 It is currently Wed, 3 Sep 2014 00:44:38 UTC

 All times are UTC [ DST ]

 Page 1 of 1 [ 3 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Help my daughter please!Posted: Thu, 10 May 2012 02:37:06 UTC
 S.O.S. Newbie

Joined: Thu, 10 May 2012 02:32:02 UTC
Posts: 1
Can anyone show me how to graph this?
Y = -3 + 2sin 2x

Top

 Post subject: Re: Help my daughter please!Posted: Thu, 10 May 2012 02:54:00 UTC
 Moderator

Joined: Wed, 30 Mar 2005 04:25:14 UTC
Posts: 14010
Location: Austin, TX
makesnosense wrote:
Can anyone show me how to graph this?
Y = -3 + 2sin 2x

Plot some points and connect the dots. If you need a reference picture, I recommend www.wolframalpha.com just type in that same equation there and it will graph it for you, but don't forget your parentheses for sine.

_________________
(\ /)
(O.o)
(> <)
This is Bunny. Copy Bunny into your signature to help him on his way to world domination

Top

 Post subject: Re: Help my daughter please!Posted: Thu, 10 May 2012 07:29:04 UTC
 S.O.S. Oldtimer

Joined: Fri, 27 Jul 2007 10:17:26 UTC
Posts: 279
Location: Chandler, AZ, USA
makesnosense wrote:
Can anyone show me how to graph this?
Y = -3 + 2sin 2x

So there are 4 things to consider here:

1) what does the parent function look like?
Spoiler:
A basic sine wave.

2) How does the 2 (multiplied by the x) change that graph?
Spoiler:
Divides the period in half.

3) How does the 2 (multiplied by sin) change that graph?
Spoiler:
Doubles the amplitude.

4) How does the -3 change that graph?
Spoiler:
Vertical shift down 3.

If you, I mean your daughter cannot answer these questions, then she needs read her book, go to class and ask questions and/or find a different teacher.

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 3 posts ]

 All times are UTC [ DST ]

Who is online

Users browsing this forum: No registered users

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forum

Search for:
 Jump to:  Select a forum ------------------ High School and College Mathematics    Algebra    Geometry and Trigonometry    Calculus    Matrix Algebra    Differential Equations    Probability and Statistics    Proposed Problems Applications    Physics, Chemistry, Engineering, etc.    Computer Science    Math for Business and Economics Advanced Mathematics    Foundations    Algebra and Number Theory    Analysis and Topology    Applied Mathematics    Other Topics in Advanced Mathematics Other Topics    Administrator Announcements    Comments and Suggestions for S.O.S. Math    Posting Math Formulas with LaTeX    Miscellaneous