One-Variable Compound Inequalities
In this discussion, you will be demonstrating your understanding of compound inequalities and the effect that dividing by a negative has on an inequality. Read the following instructions in order and view the example (available for download in your online classroom) to complete this discussion. Please complete the following problems according to your assigned number.
• Solve the compound inequalities as demonstrated in Elementary and Intermediate Algebraand the Instructor Guidance in the left navigation toolbar, in your online course. Be careful of how a negative x-term is handled in the solving process. Show all math work arriving at the solutions.
• Show the solution sets written algebraically and as a union or intersection of intervals. Describe in words what the solution sets mean, and then display a simple line graph for each solution set. This is demonstrated in the Instructor Guidance in the left navigation toolbar, in your online course.
• Incorporate the following five math vocabulary words into your discussion. Use bold font to emphasize the words in your writing. Do not write definitions for the words; use them appropriately in sentences describing your math work.
o Compound inequalities
o And
o Or
o Intersection
o Union
Your initial post should be at least 250 words in length. Support your claims with examples from required material(s) and/or other scholarly resources, and properly cite any references.
Required Resources
Text
• Dugopolski, M. (2012). Elementary and intermediate algebra (4th ed.). New York, NY: McGraw-Hill Publishing.
• Chapter 7: Systems of Linear Equations
- 7.1 - 7.3
• Chapter 8: More on Inequalities
- 8.1
- 8.3
Supplemental Materials
• Inserting math symbols [Handout]. (n.d.). Division of General Education, Ashford University, San Diego, CA.
o This handout is available for download in your online classroom.
Recommended Resources
Multimedia
• Brightstrom. (2010, May 4). Algebra 2 - Solving a system of linear equations in two variables [Video file]. Retrieved from https://www.youtube.com/watch?v=PhFb7pPos5E&NR=1
• Hansen48066. (2007, March 5). Graphing inequalities in two variables [Video file]. Retrieved from https://www.youtube.com/watch?v=lxCoahmymqw&feature=youtu.be
• TeacherTube Math. (2009, September 1). Compound inequalities [Video file]. Retrieved from https://www.youtube.com/watch?v=jZSsHQct4tw&feature=relmfu