Posts: 16
Threads: 5
Likes Received: 0 in 0 posts
Likes Given: 0
Joined: Jun 2015
I am having so much trouble in solving inequalities and trying to figure out how the signs change. The videos are helpful but for some reason I am stuck on stupid. For example, in the videos, the narrator just gives the answer without saying why the signs change. If anyone can help it would be greatly appreciated.
If you need specific examples, I can provide the questions on the site.
Thank you so much!
•
Posts: 1,806
Threads: 48
Likes Received: 446 in 297 posts
Likes Given: 278
Joined: Jun 2012
I'm not positive, but I think the rule is the sign changes whenever you multiply or divide by a negative number
•
Posts: 61
Threads: 1
Likes Received: 0 in 0 posts
Likes Given: 0
Joined: May 2015
bluebooger Wrote:I'm not positive, but I think the rule is the sign changes whenever you multiply or divide by a negative number
This is correct. Anytime you multiply or divide by a negative, flip the sign.
Where most people get tripped up is dealing with a variable like x.
Since it is a variable, there is no way to know if it is a negative or a positive number. If I remember correctly this topic is not covered in depth with college algebra, but you will learn how to deal with it later. To get around the problem you should never multiply or divide with a variable, so that you don't have to deal with the two possibilities for the sign.
Educational Goal: MBA by Spring 2018
B.S. in Business Administration, COSC, Expected Winter 2015, Started May 30, 2015
Upcoming:
Fall Courses (9c): COSC BUS 201: Business Statistics | BYU ENGL 316: Technical Writing | BYU Psych 330: Organizational Psychology
Progress (89/120c):
8/16/2015 COSC (3c): IDS 101 Cornerstone: A
8/08/2015 UExcel (6c): Research Methods in Psychology: A | Social Psychology: A
7/20/2015 UExcel (6c): Human Resource Management: A | Labor Relations: A
7/06/2015 CLEP (6c): American Government: 63 | Principles of Microeconomics: 73
7/02/2015 UExcel (3c): Organization Behavior: A
6/19/2015 DSST (9c): Business Ethics and Society: 453 | Environment and Humanity: 444 | Substance Abuse: 427
6/15/2015 CLEP (12c): Information Systems: 77 | Introductory Business Law: 71 | Principles of Marketing: 71 | Principles of Management: 73
6/12/2015 Transfer Credits post Academic Forgiveness (44c): Community College: 36c | AP: 8c
•
Posts: 16
Threads: 5
Likes Received: 0 in 0 posts
Likes Given: 0
Joined: Jun 2015
cptdilbert Wrote:This is correct. Anytime you multiply or divide by a negative, flip the sign.
Where most people get tripped up is dealing with a variable like x.
Since it is a variable, there is no way to know if it is a negative or a positive number. If I remember correctly this topic is not covered in depth with college algebra, but you will learn how to deal with it later. To get around the problem you should never multiply or divide with a variable, so that you don't have to deal with the two possibilities for the sign.
Thank you both for your replies - I have a tendency to "over-think" problems and then confuse myself. Once I get to this point my brain basically shuts down.
•